Solve the proportion: 5/12 = x/36. Find x.

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Multiple Choice

Solve the proportion: 5/12 = x/36. Find x.

Explanation:
Proportions mean both sides have the same value, so the cross products are equal. For 5/12 = x/36, multiply across: 5 times 36 equals 12 times x. That gives 180 = 12x, so x = 180/12 = 15. You can also see it by noticing the denominator scales from 12 up to 36 by a factor of 3, so the numerator must scale by the same factor: 5×3 = 15. Checking: 15/36 simplifies to 5/12, confirming the solution.

Proportions mean both sides have the same value, so the cross products are equal. For 5/12 = x/36, multiply across: 5 times 36 equals 12 times x. That gives 180 = 12x, so x = 180/12 = 15. You can also see it by noticing the denominator scales from 12 up to 36 by a factor of 3, so the numerator must scale by the same factor: 5×3 = 15. Checking: 15/36 simplifies to 5/12, confirming the solution.

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