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Finding the Fourth Proportional to 8,352.77, 12,517.79 and 3,155.81

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Solution

The fourth proportional to 8,352.77, 12,517.79 and 3,155.81 is: 4,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.77 : 12,517.79 = 3,155.81 : x
  2. Step 2: Convert to fraction form
    8,352.77/12,517.79 = 3,155.81/x
  3. Step 3: Cross multiply
    8,352.77x = 12,517.79 × 3,155.81
  4. Step 4: Simplify right side
    8,352.77x = 39,503,688.49
  5. Step 5: Solve for x
    x = 39,503,688.49/8,352.77
  6. Step 6: Final answer
    x = 4,729.41

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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.