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Finding the Fourth Proportional to 18,442.62, 25,452 and 10,485.72

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Solution

The fourth proportional to 18,442.62, 25,452 and 10,485.72 is: 14,470.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.62 : 25,452 = 10,485.72 : x
  2. Step 2: Convert to fraction form
    18,442.62/25,452 = 10,485.72/x
  3. Step 3: Cross multiply
    18,442.62x = 25,452 × 10,485.72
  4. Step 4: Simplify right side
    18,442.62x = 266,882,545.44
  5. Step 5: Solve for x
    x = 266,882,545.44/18,442.62
  6. Step 6: Final answer
    x = 14,470.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.