Home / 9,149.28-13,723.92-2,223.72

Finding the Fourth Proportional to 9,149.28, 13,723.92 and 2,223.72

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Solution

The fourth proportional to 9,149.28, 13,723.92 and 2,223.72 is: 3,335.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.28 : 13,723.92 = 2,223.72 : x
  2. Step 2: Convert to fraction form
    9,149.28/13,723.92 = 2,223.72/x
  3. Step 3: Cross multiply
    9,149.28x = 13,723.92 × 2,223.72
  4. Step 4: Simplify right side
    9,149.28x = 30,518,155.38
  5. Step 5: Solve for x
    x = 30,518,155.38/9,149.28
  6. Step 6: Final answer
    x = 3,335.58

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Similar ratio
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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.