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Finding the Fourth Proportional to 10,531.28, 15,796.92 and 5,335.76

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Solution

The fourth proportional to 10,531.28, 15,796.92 and 5,335.76 is: 8,003.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.28 : 15,796.92 = 5,335.76 : x
  2. Step 2: Convert to fraction form
    10,531.28/15,796.92 = 5,335.76/x
  3. Step 3: Cross multiply
    10,531.28x = 15,796.92 × 5,335.76
  4. Step 4: Simplify right side
    10,531.28x = 84,288,573.86
  5. Step 5: Solve for x
    x = 84,288,573.86/10,531.28
  6. Step 6: Final answer
    x = 8,003.64

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