Home / 12,445.38-18,663.92-4,123.04

Finding the Fourth Proportional to 12,445.38, 18,663.92 and 4,123.04

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Solution

The fourth proportional to 12,445.38, 18,663.92 and 4,123.04 is: 6,183.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.38 : 18,663.92 = 4,123.04 : x
  2. Step 2: Convert to fraction form
    12,445.38/18,663.92 = 4,123.04/x
  3. Step 3: Cross multiply
    12,445.38x = 18,663.92 × 4,123.04
  4. Step 4: Simplify right side
    12,445.38x = 76,951,990.24
  5. Step 5: Solve for x
    x = 76,951,990.24/12,445.38
  6. Step 6: Final answer
    x = 6,183.18

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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.