Home / 9,149.46-12,626.19-5,171.36

Finding the Fourth Proportional to 9,149.46, 12,626.19 and 5,171.36

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Solution

The fourth proportional to 9,149.46, 12,626.19 and 5,171.36 is: 7,136.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.46 : 12,626.19 = 5,171.36 : x
  2. Step 2: Convert to fraction form
    9,149.46/12,626.19 = 5,171.36/x
  3. Step 3: Cross multiply
    9,149.46x = 12,626.19 × 5,171.36
  4. Step 4: Simplify right side
    9,149.46x = 65,294,510.79
  5. Step 5: Solve for x
    x = 65,294,510.79/9,149.46
  6. Step 6: Final answer
    x = 7,136.43

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Half scale
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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.