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Finding the Fourth Proportional to 8,498.80, 12,748.20 and 2,655.43

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Solution

The fourth proportional to 8,498.80, 12,748.20 and 2,655.43 is: 3,983.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.80 : 12,748.20 = 2,655.43 : x
  2. Step 2: Convert to fraction form
    8,498.80/12,748.20 = 2,655.43/x
  3. Step 3: Cross multiply
    8,498.80x = 12,748.20 × 2,655.43
  4. Step 4: Simplify right side
    8,498.80x = 33,851,952.73
  5. Step 5: Solve for x
    x = 33,851,952.73/8,498.80
  6. Step 6: Final answer
    x = 3,983.15

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