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Finding the Fourth Proportional to 8,599.29, 12,906.22 and 3,408.81

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Solution

The fourth proportional to 8,599.29, 12,906.22 and 3,408.81 is: 5,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,599.29 : 12,906.22 = 3,408.81 : x
  2. Step 2: Convert to fraction form
    8,599.29/12,906.22 = 3,408.81/x
  3. Step 3: Cross multiply
    8,599.29x = 12,906.22 × 3,408.81
  4. Step 4: Simplify right side
    8,599.29x = 43,994,851.80
  5. Step 5: Solve for x
    x = 43,994,851.80/8,599.29
  6. Step 6: Final answer
    x = 5,116.10

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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.