Home / 8,220.26-12,331.56-2,671.82

Finding the Fourth Proportional to 8,220.26, 12,331.56 and 2,671.82

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Solution

The fourth proportional to 8,220.26, 12,331.56 and 2,671.82 is: 4,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.26 : 12,331.56 = 2,671.82 : x
  2. Step 2: Convert to fraction form
    8,220.26/12,331.56 = 2,671.82/x
  3. Step 3: Cross multiply
    8,220.26x = 12,331.56 × 2,671.82
  4. Step 4: Simplify right side
    8,220.26x = 32,947,708.64
  5. Step 5: Solve for x
    x = 32,947,708.64/8,220.26
  6. Step 6: Final answer
    x = 4,008.11

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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.