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Finding the Fourth Proportional to 18,503.28, 27,753.12 and 10,180.56

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Solution

The fourth proportional to 18,503.28, 27,753.12 and 10,180.56 is: 15,269.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,503.28 : 27,753.12 = 10,180.56 : x
  2. Step 2: Convert to fraction form
    18,503.28/27,753.12 = 10,180.56/x
  3. Step 3: Cross multiply
    18,503.28x = 27,753.12 × 10,180.56
  4. Step 4: Simplify right side
    18,503.28x = 282,542,303.35
  5. Step 5: Solve for x
    x = 282,542,303.35/18,503.28
  6. Step 6: Final answer
    x = 15,269.85

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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.