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Finding the Fourth Proportional to 18,503.52, 27,754.61 and 8,629.17

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Solution

The fourth proportional to 18,503.52, 27,754.61 and 8,629.17 is: 12,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.52 : 27,754.61 = 8,629.17 : x
  2. Step 2: Convert to fraction form
    18,503.52/27,754.61 = 8,629.17/x
  3. Step 3: Cross multiply
    18,503.52x = 27,754.61 × 8,629.17
  4. Step 4: Simplify right side
    18,503.52x = 239,499,204.83
  5. Step 5: Solve for x
    x = 239,499,204.83/18,503.52
  6. Step 6: Final answer
    x = 12,943.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.