Home / 8,387.13-11,575.33-5,411.62

Finding the Fourth Proportional to 8,387.13, 11,575.33 and 5,411.62

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Solution

The fourth proportional to 8,387.13, 11,575.33 and 5,411.62 is: 7,468.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.13 : 11,575.33 = 5,411.62 : x
  2. Step 2: Convert to fraction form
    8,387.13/11,575.33 = 5,411.62/x
  3. Step 3: Cross multiply
    8,387.13x = 11,575.33 × 5,411.62
  4. Step 4: Simplify right side
    8,387.13x = 62,641,270.94
  5. Step 5: Solve for x
    x = 62,641,270.94/8,387.13
  6. Step 6: Final answer
    x = 7,468.74

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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.