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Finding the Fourth Proportional to 10,651.86, 15,960.20 and 6,479.24

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Solution

The fourth proportional to 10,651.86, 15,960.20 and 6,479.24 is: 9,708.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,651.86 : 15,960.20 = 6,479.24 : x
  2. Step 2: Convert to fraction form
    10,651.86/15,960.20 = 6,479.24/x
  3. Step 3: Cross multiply
    10,651.86x = 15,960.20 × 6,479.24
  4. Step 4: Simplify right side
    10,651.86x = 103,409,966.25
  5. Step 5: Solve for x
    x = 103,409,966.25/10,651.86
  6. Step 6: Final answer
    x = 9,708.16

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