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Finding the Fourth Proportional to 18,454.56, 27,691.56 and 8,073.60

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Solution

The fourth proportional to 18,454.56, 27,691.56 and 8,073.60 is: 12,114.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.56 : 27,691.56 = 8,073.60 : x
  2. Step 2: Convert to fraction form
    18,454.56/27,691.56 = 8,073.60/x
  3. Step 3: Cross multiply
    18,454.56x = 27,691.56 × 8,073.60
  4. Step 4: Simplify right side
    18,454.56x = 223,570,578.82
  5. Step 5: Solve for x
    x = 223,570,578.82/18,454.56
  6. Step 6: Final answer
    x = 12,114.65

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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.