Home / 8,400.11-11,589.89-5,414.85

Finding the Fourth Proportional to 8,400.11, 11,589.89 and 5,414.85

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Solution

The fourth proportional to 8,400.11, 11,589.89 and 5,414.85 is: 7,471.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.11 : 11,589.89 = 5,414.85 : x
  2. Step 2: Convert to fraction form
    8,400.11/11,589.89 = 5,414.85/x
  3. Step 3: Cross multiply
    8,400.11x = 11,589.89 × 5,414.85
  4. Step 4: Simplify right side
    8,400.11x = 62,757,488.79
  5. Step 5: Solve for x
    x = 62,757,488.79/8,400.11
  6. Step 6: Final answer
    x = 7,471.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.