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Finding the Fourth Proportional to 18,356.91, 27,549.18 and 8,503.09

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Solution

The fourth proportional to 18,356.91, 27,549.18 and 8,503.09 is: 12,761.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,356.91 : 27,549.18 = 8,503.09 : x
  2. Step 2: Convert to fraction form
    18,356.91/27,549.18 = 8,503.09/x
  3. Step 3: Cross multiply
    18,356.91x = 27,549.18 × 8,503.09
  4. Step 4: Simplify right side
    18,356.91x = 234,253,156.97
  5. Step 5: Solve for x
    x = 234,253,156.97/18,356.91
  6. Step 6: Final answer
    x = 12,761.03

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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.