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Finding the Fourth Proportional to 8,610.56, 12,914.76 and 3,411.44

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Solution

The fourth proportional to 8,610.56, 12,914.76 and 3,411.44 is: 5,116.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.56 : 12,914.76 = 3,411.44 : x
  2. Step 2: Convert to fraction form
    8,610.56/12,914.76 = 3,411.44/x
  3. Step 3: Cross multiply
    8,610.56x = 12,914.76 × 3,411.44
  4. Step 4: Simplify right side
    8,610.56x = 44,057,928.85
  5. Step 5: Solve for x
    x = 44,057,928.85/8,610.56
  6. Step 6: Final answer
    x = 5,116.73

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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.