You can put this solution on YOUR website! Given:
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One way to solve proportions such as this is to "cross-multiply". Multiply the numerator on
one side by the denominator on the other side. Do it for both numerators and put the equal sign
between the two products.
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In this case, multiply the numerator on the left side by the denominator on the right side
of the equal sign. This is 7 times 8 and the result is 56.
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Then multiply the numerator on the right side by the denominator on the left side. In this problem
that means multiplying 5 times y to get 5y
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So the two products are 5y and 56. Put the equal sign between them and you have:
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5y = 56
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Solve for y by dividing both sides by 5 to get:
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and that's the answer.
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Hope this helps to give you an understandable approach to solving proportions.
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