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Finding the Fourth Proportional to 8,367.45, 12,551.18 and 3,747.21

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Solution

The fourth proportional to 8,367.45, 12,551.18 and 3,747.21 is: 5,620.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,367.45 : 12,551.18 = 3,747.21 : x
  2. Step 2: Convert to fraction form
    8,367.45/12,551.18 = 3,747.21/x
  3. Step 3: Cross multiply
    8,367.45x = 12,551.18 × 3,747.21
  4. Step 4: Simplify right side
    8,367.45x = 47,031,888.47
  5. Step 5: Solve for x
    x = 47,031,888.47/8,367.45
  6. Step 6: Final answer
    x = 5,620.82

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.