Question

If x is directly proportional to y and x=4.5 and y=3 find the value of x when y =6

Answer 1

4.5 : 3 :: x : 6

a : b :: c : d

$\frac{a}{b} = \frac{c}{d} \\ ad = bc \\ product \: of \: means = product \: of extremes \\ 4.5 \times 6 = 3 \times x \\ \frac{4.5 \times 6}{3} = x \\ x = 1.5 \times 6 \\ x = 9$

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Answer 2

Answer

Its easy, just follow these steps!

Step-by-step explanation:

Data:

y=6

x=4.5

Solution:

4.5 x 6 =27

The answer is 27

Why?

Because if we have to find the value we have to multiply the 2 digits to get the value of them.

Hopefully this helped you.

Thanks.