Find the fourth proportional to 15,6,7.
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HEY MATE YOUR ANSWER IS HERE....
★LET BE THE FOURTH PROPORTIONAL BE “ X ” ★
THEN ,
15 : 6 :: 7 : X
now ,
★ PRODUCT OF MEANS = PRODUCT OF EXTREMES ★
• PRODUCT OF MEANS = 7 × 6
• PRODUCT OF EXTREMES = 15x
THEREFORE :-
7 × 6 = 15x
42 = 15 x
42 ÷ 15 = x
2.8 = x
HENCE , the fourth proportional to 15,6,7 IS 2.8
HOPE IT HELPS THANKS FOR YOUR QUESTION...
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