Home / 9,150.62-12,627.70-5,171.66

Finding the Fourth Proportional to 9,150.62, 12,627.70 and 5,171.66

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Solution

The fourth proportional to 9,150.62, 12,627.70 and 5,171.66 is: 7,136.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,150.62 : 12,627.70 = 5,171.66 : x
  2. Step 2: Convert to fraction form
    9,150.62/12,627.70 = 5,171.66/x
  3. Step 3: Cross multiply
    9,150.62x = 12,627.70 × 5,171.66
  4. Step 4: Simplify right side
    9,150.62x = 65,306,094.91
  5. Step 5: Solve for x
    x = 65,306,094.91/9,150.62
  6. Step 6: Final answer
    x = 7,136.79

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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.