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Finding the Fourth Proportional to 15,318.90, 22,981.42 and 6,996.68

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Solution

The fourth proportional to 15,318.90, 22,981.42 and 6,996.68 is: 10,496.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,318.90 : 22,981.42 = 6,996.68 : x
  2. Step 2: Convert to fraction form
    15,318.90/22,981.42 = 6,996.68/x
  3. Step 3: Cross multiply
    15,318.90x = 22,981.42 × 6,996.68
  4. Step 4: Simplify right side
    15,318.90x = 160,793,641.69
  5. Step 5: Solve for x
    x = 160,793,641.69/15,318.90
  6. Step 6: Final answer
    x = 10,496.42

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