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Finding the Fourth Proportional to 8,931.88, 13,375.96 and 6,292.90

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Solution

The fourth proportional to 8,931.88, 13,375.96 and 6,292.90 is: 9,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.88 : 13,375.96 = 6,292.90 : x
  2. Step 2: Convert to fraction form
    8,931.88/13,375.96 = 6,292.90/x
  3. Step 3: Cross multiply
    8,931.88x = 13,375.96 × 6,292.90
  4. Step 4: Simplify right side
    8,931.88x = 84,173,578.68
  5. Step 5: Solve for x
    x = 84,173,578.68/8,931.88
  6. Step 6: Final answer
    x = 9,423.95

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