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Find the middle proportion 16 and 9 |
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Answer» To answer this question, one should know what is proportion and what is mean PROPORTIONAL.when four numbers say A,B,C,D are in similar quantities such that A:B= C:D then they are said to be in proportion.when A,B,C are in continued proportion then B is said to be the mean proportional.let US take A=9 and C=16 and B as X. thenA:X : : X:C9:X : : X:16{x}^{2} = 9 \TIMES 16X 2 =9×16{x}^{2} = 144x 2 =144Therefore, x = 12.So, the mean proportional of 9 and 16 is 12. |
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