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Finding the Fourth Proportional to 8,480.58, 12,715.87 and 3,481.46

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Solution

The fourth proportional to 8,480.58, 12,715.87 and 3,481.46 is: 5,220.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.58 : 12,715.87 = 3,481.46 : x
  2. Step 2: Convert to fraction form
    8,480.58/12,715.87 = 3,481.46/x
  3. Step 3: Cross multiply
    8,480.58x = 12,715.87 × 3,481.46
  4. Step 4: Simplify right side
    8,480.58x = 44,269,792.77
  5. Step 5: Solve for x
    x = 44,269,792.77/8,480.58
  6. Step 6: Final answer
    x = 5,220.14

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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.