Home / 8,147.17-11,230.41-7,469.20

Finding the Fourth Proportional to 8,147.17, 11,230.41 and 7,469.20

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Solution

The fourth proportional to 8,147.17, 11,230.41 and 7,469.20 is: 10,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.17 : 11,230.41 = 7,469.20 : x
  2. Step 2: Convert to fraction form
    8,147.17/11,230.41 = 7,469.20/x
  3. Step 3: Cross multiply
    8,147.17x = 11,230.41 × 7,469.20
  4. Step 4: Simplify right side
    8,147.17x = 83,882,178.37
  5. Step 5: Solve for x
    x = 83,882,178.37/8,147.17
  6. Step 6: Final answer
    x = 10,295.87

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Half scale
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Double scale
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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.