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Finding the Fourth Proportional to 15,003.92, 22,505.88 and 8,122.16

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Solution

The fourth proportional to 15,003.92, 22,505.88 and 8,122.16 is: 12,183.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.92 : 22,505.88 = 8,122.16 : x
  2. Step 2: Convert to fraction form
    15,003.92/22,505.88 = 8,122.16/x
  3. Step 3: Cross multiply
    15,003.92x = 22,505.88 × 8,122.16
  4. Step 4: Simplify right side
    15,003.92x = 182,796,358.30
  5. Step 5: Solve for x
    x = 182,796,358.30/15,003.92
  6. Step 6: Final answer
    x = 12,183.24

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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.