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Finding the Fourth Proportional to 11,839.80, 17,753.16 and 7,447.86

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Solution

The fourth proportional to 11,839.80, 17,753.16 and 7,447.86 is: 11,167.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,839.80 : 17,753.16 = 7,447.86 : x
  2. Step 2: Convert to fraction form
    11,839.80/17,753.16 = 7,447.86/x
  3. Step 3: Cross multiply
    11,839.80x = 17,753.16 × 7,447.86
  4. Step 4: Simplify right side
    11,839.80x = 132,223,050.24
  5. Step 5: Solve for x
    x = 132,223,050.24/11,839.80
  6. Step 6: Final answer
    x = 11,167.68

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