Home / 9,387.10-14,081.28-3,147.76

Finding the Fourth Proportional to 9,387.10, 14,081.28 and 3,147.76

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Solution

The fourth proportional to 9,387.10, 14,081.28 and 3,147.76 is: 4,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.10 : 14,081.28 = 3,147.76 : x
  2. Step 2: Convert to fraction form
    9,387.10/14,081.28 = 3,147.76/x
  3. Step 3: Cross multiply
    9,387.10x = 14,081.28 × 3,147.76
  4. Step 4: Simplify right side
    9,387.10x = 44,324,489.93
  5. Step 5: Solve for x
    x = 44,324,489.93/9,387.10
  6. Step 6: Final answer
    x = 4,721.85

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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.