Home / 9,149.18-12,626.12-5,170.21

Finding the Fourth Proportional to 9,149.18, 12,626.12 and 5,170.21

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Solution

The fourth proportional to 9,149.18, 12,626.12 and 5,170.21 is: 7,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.18 : 12,626.12 = 5,170.21 : x
  2. Step 2: Convert to fraction form
    9,149.18/12,626.12 = 5,170.21/x
  3. Step 3: Cross multiply
    9,149.18x = 12,626.12 × 5,170.21
  4. Step 4: Simplify right side
    9,149.18x = 65,279,691.89
  5. Step 5: Solve for x
    x = 65,279,691.89/9,149.18
  6. Step 6: Final answer
    x = 7,135.03

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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.