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Finding the Fourth Proportional to 18,154.92, 27,195.90 and 8,280.60

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Solution

The fourth proportional to 18,154.92, 27,195.90 and 8,280.60 is: 12,404.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.92 : 27,195.90 = 8,280.60 : x
  2. Step 2: Convert to fraction form
    18,154.92/27,195.90 = 8,280.60/x
  3. Step 3: Cross multiply
    18,154.92x = 27,195.90 × 8,280.60
  4. Step 4: Simplify right side
    18,154.92x = 225,198,369.54
  5. Step 5: Solve for x
    x = 225,198,369.54/18,154.92
  6. Step 6: Final answer
    x = 12,404.26

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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.