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Finding the Fourth Proportional to 8,408.73, 12,596.05 and 3,899.46

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Solution

The fourth proportional to 8,408.73, 12,596.05 and 3,899.46 is: 5,841.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.73 : 12,596.05 = 3,899.46 : x
  2. Step 2: Convert to fraction form
    8,408.73/12,596.05 = 3,899.46/x
  3. Step 3: Cross multiply
    8,408.73x = 12,596.05 × 3,899.46
  4. Step 4: Simplify right side
    8,408.73x = 49,117,793.13
  5. Step 5: Solve for x
    x = 49,117,793.13/8,408.73
  6. Step 6: Final answer
    x = 5,841.29

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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.