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    If 9.8 : 14.7 :: 15 : x, find the value of x.
    Question

    If 9.8 : 14.7 :: 15 : x, find the value of x.

    A.

    19.9

    B.

    23.2

    C.

    22.5

    D.

    21.7

    Correct option is C

    Given:

    Proportion 9.8 : 14.7 :: 15 : x

    Solution:
    =14.7×159.8=14798×15=32×15=22.5=\frac{14.7\times 15}{9.8}=\frac{147}{98}\times 15=\frac{3}{2}\times 15=22.5

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