Wallkill Central School District

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Proportions

Setting up Proportions

Khan academy video showing how to set up a proportion

https://www.khanacademy.org/math/pre-algebra/pre-algebra-ratios-rates/pre-algebra-write-and-solve-proportions/v/writing-proportions

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Proportions Lesson & Practice

Learn and practice proportions. Click on "next" at the bottom of each page to go through all four sections of the lesson.

http://www.math.com/school/subject1/lessons/S1U2L2GL.html

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Solving Proportions - 3 methods - Video and Lessons

A Math Village video showing how to solve proportions using: vertical, equivalent fractions, , and cross products.

http://www.mathvillage.info/node/72

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Solving Proportions Using Cross Multiplication - Video

A Khan Academy lesson on how to solve proportions using cross-multiplication.

https://www.khanacademy.org/math/pre-algebra/pre-algebra-ratios-rates/pre-algebra-write-and-solve-proportions/v/find-an-unknown-in-a-proportion

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Wallkill Central School District

Together We Can Make a Difference

O'Donnell, Jane | AIS 4-6 Math

Setting up Proportions

Proportions Lesson & Practice

Solving Proportions - 3 methods - Video and Lessons

Solving Proportions Using Cross Multiplication - Video