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Finding the Fourth Proportional to 8,408.22, 12,605 and 4,244.76

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Solution

The fourth proportional to 8,408.22, 12,605 and 4,244.76 is: 6,363.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.22 : 12,605 = 4,244.76 : x
  2. Step 2: Convert to fraction form
    8,408.22/12,605 = 4,244.76/x
  3. Step 3: Cross multiply
    8,408.22x = 12,605 × 4,244.76
  4. Step 4: Simplify right side
    8,408.22x = 53,505,199.80
  5. Step 5: Solve for x
    x = 53,505,199.80/8,408.22
  6. Step 6: Final answer
    x = 6,363.44

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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.