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Finding the Fourth Proportional to 8,503.20, 12,755.64 and 2,659.92

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Solution

The fourth proportional to 8,503.20, 12,755.64 and 2,659.92 is: 3,990.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.20 : 12,755.64 = 2,659.92 : x
  2. Step 2: Convert to fraction form
    8,503.20/12,755.64 = 2,659.92/x
  3. Step 3: Cross multiply
    8,503.20x = 12,755.64 × 2,659.92
  4. Step 4: Simplify right side
    8,503.20x = 33,928,981.95
  5. Step 5: Solve for x
    x = 33,928,981.95/8,503.20
  6. Step 6: Final answer
    x = 3,990.14

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