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Finding the Fourth Proportional to 15,000.98, 22,481.12 and 8,321.72

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Solution

The fourth proportional to 15,000.98, 22,481.12 and 8,321.72 is: 12,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000.98 : 22,481.12 = 8,321.72 : x
  2. Step 2: Convert to fraction form
    15,000.98/22,481.12 = 8,321.72/x
  3. Step 3: Cross multiply
    15,000.98x = 22,481.12 × 8,321.72
  4. Step 4: Simplify right side
    15,000.98x = 187,081,585.93
  5. Step 5: Solve for x
    x = 187,081,585.93/15,000.98
  6. Step 6: Final answer
    x = 12,471.29

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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.