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Finding the Fourth Proportional to 8,344.76, 12,517.14 and 3,413.21

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Solution

The fourth proportional to 8,344.76, 12,517.14 and 3,413.21 is: 5,119.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,344.76 : 12,517.14 = 3,413.21 : x
  2. Step 2: Convert to fraction form
    8,344.76/12,517.14 = 3,413.21/x
  3. Step 3: Cross multiply
    8,344.76x = 12,517.14 × 3,413.21
  4. Step 4: Simplify right side
    8,344.76x = 42,723,627.42
  5. Step 5: Solve for x
    x = 42,723,627.42/8,344.76
  6. Step 6: Final answer
    x = 5,119.82

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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.