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Finding the Fourth Proportional to 18,800.43, 25,943.82 and 11,242.31

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Solution

The fourth proportional to 18,800.43, 25,943.82 and 11,242.31 is: 15,513.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,800.43 : 25,943.82 = 11,242.31 : x
  2. Step 2: Convert to fraction form
    18,800.43/25,943.82 = 11,242.31/x
  3. Step 3: Cross multiply
    18,800.43x = 25,943.82 × 11,242.31
  4. Step 4: Simplify right side
    18,800.43x = 291,668,337.31
  5. Step 5: Solve for x
    x = 291,668,337.31/18,800.43
  6. Step 6: Final answer
    x = 15,513.92

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