FTCE General Knowledge Math Practice Test 2025 – All-in-One Guide to Ensure Exam Success!

Question: 1 / 400

In a proportional relationship, how do you find the cross products?

Multiply corresponding outcomes

In a proportional relationship, finding the cross products involves multiplying the corresponding outcomes of two ratios. When you set up a proportion, it typically takes the form of two equivalent fractions, such as a/b = c/d. The cross products are obtained by multiplying the numerator of one fraction by the denominator of the other fraction, resulting in ad and bc.

This method is used to determine if two ratios are equivalent, as the cross products should be equal for the ratios to represent a true proportion. The other options are not applicable to finding cross products: adding, dividing, or subtracting outcomes does not give the necessary relationship needed to verify proportionality. Therefore, multiplying corresponding outcomes is the fundamental operation that defines the cross products in proportional relationships.

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Add both distances

Divide to obtain a ratio

Subtract the outcomes

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