Home / 8,761.25-13,134.05-3,213.29

Finding the Fourth Proportional to 8,761.25, 13,134.05 and 3,213.29

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Solution

The fourth proportional to 8,761.25, 13,134.05 and 3,213.29 is: 4,817.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.25 : 13,134.05 = 3,213.29 : x
  2. Step 2: Convert to fraction form
    8,761.25/13,134.05 = 3,213.29/x
  3. Step 3: Cross multiply
    8,761.25x = 13,134.05 × 3,213.29
  4. Step 4: Simplify right side
    8,761.25x = 42,203,511.52
  5. Step 5: Solve for x
    x = 42,203,511.52/8,761.25
  6. Step 6: Final answer
    x = 4,817.07

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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.