Home / 8,387.26-11,572.17-5,400.65

Finding the Fourth Proportional to 8,387.26, 11,572.17 and 5,400.65

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Solution

The fourth proportional to 8,387.26, 11,572.17 and 5,400.65 is: 7,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.26 : 11,572.17 = 5,400.65 : x
  2. Step 2: Convert to fraction form
    8,387.26/11,572.17 = 5,400.65/x
  3. Step 3: Cross multiply
    8,387.26x = 11,572.17 × 5,400.65
  4. Step 4: Simplify right side
    8,387.26x = 62,497,155.05
  5. Step 5: Solve for x
    x = 62,497,155.05/8,387.26
  6. Step 6: Final answer
    x = 7,451.44

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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.