Home / 8,269.31-12,399.29-2,721.17

Finding the Fourth Proportional to 8,269.31, 12,399.29 and 2,721.17

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Solution

The fourth proportional to 8,269.31, 12,399.29 and 2,721.17 is: 4,080.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.31 : 12,399.29 = 2,721.17 : x
  2. Step 2: Convert to fraction form
    8,269.31/12,399.29 = 2,721.17/x
  3. Step 3: Cross multiply
    8,269.31x = 12,399.29 × 2,721.17
  4. Step 4: Simplify right side
    8,269.31x = 33,740,500.37
  5. Step 5: Solve for x
    x = 33,740,500.37/8,269.31
  6. Step 6: Final answer
    x = 4,080.21

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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.