Home / 9,149.57-12,626.51-5,170.73

Finding the Fourth Proportional to 9,149.57, 12,626.51 and 5,170.73

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Solution

The fourth proportional to 9,149.57, 12,626.51 and 5,170.73 is: 7,135.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.57 : 12,626.51 = 5,170.73 : x
  2. Step 2: Convert to fraction form
    9,149.57/12,626.51 = 5,170.73/x
  3. Step 3: Cross multiply
    9,149.57x = 12,626.51 × 5,170.73
  4. Step 4: Simplify right side
    9,149.57x = 65,288,248.20
  5. Step 5: Solve for x
    x = 65,288,248.20/9,149.57
  6. Step 6: Final answer
    x = 7,135.66

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Double scale
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Similar ratio
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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.