Home / 10,987.11-15,162.17-5,951.31

Finding the Fourth Proportional to 10,987.11, 15,162.17 and 5,951.31

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Solution

The fourth proportional to 10,987.11, 15,162.17 and 5,951.31 is: 8,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.11 : 15,162.17 = 5,951.31 : x
  2. Step 2: Convert to fraction form
    10,987.11/15,162.17 = 5,951.31/x
  3. Step 3: Cross multiply
    10,987.11x = 15,162.17 × 5,951.31
  4. Step 4: Simplify right side
    10,987.11x = 90,234,744.19
  5. Step 5: Solve for x
    x = 90,234,744.19/10,987.11
  6. Step 6: Final answer
    x = 8,212.78

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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.