Proportions

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then isolate the variable.

Front

What does cross-multiplication mean?

Back

Cross-multiplication involves multiplying the numerator of one ratio by the denominator of the other ratio.

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Back

Front

Back

x = 26.

Front

Back

x = 15.

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Back

x = 5.

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Back

c = 12.

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Back

c = 8.

Front

What is the first step in solving a proportion?

Back

The first step is to set the two ratios equal to each other.