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Finding the Fourth Proportional to 8,020.92, 12,024.90 and 4,123.20

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Solution

The fourth proportional to 8,020.92, 12,024.90 and 4,123.20 is: 6,181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,020.92 : 12,024.90 = 4,123.20 : x
  2. Step 2: Convert to fraction form
    8,020.92/12,024.90 = 4,123.20/x
  3. Step 3: Cross multiply
    8,020.92x = 12,024.90 × 4,123.20
  4. Step 4: Simplify right side
    8,020.92x = 49,581,067.68
  5. Step 5: Solve for x
    x = 49,581,067.68/8,020.92
  6. Step 6: Final answer
    x = 6,181.47

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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.