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Finding the Fourth Proportional to 18,711.31, 25,821.54 and 10,327.75

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Solution

The fourth proportional to 18,711.31, 25,821.54 and 10,327.75 is: 14,252.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.31 : 25,821.54 = 10,327.75 : x
  2. Step 2: Convert to fraction form
    18,711.31/25,821.54 = 10,327.75/x
  3. Step 3: Cross multiply
    18,711.31x = 25,821.54 × 10,327.75
  4. Step 4: Simplify right side
    18,711.31x = 266,678,409.74
  5. Step 5: Solve for x
    x = 266,678,409.74/18,711.31
  6. Step 6: Final answer
    x = 14,252.26

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