Home / 8,721.33-13,083.12-3,173.82

Finding the Fourth Proportional to 8,721.33, 13,083.12 and 3,173.82

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Solution

The fourth proportional to 8,721.33, 13,083.12 and 3,173.82 is: 4,761.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.33 : 13,083.12 = 3,173.82 : x
  2. Step 2: Convert to fraction form
    8,721.33/13,083.12 = 3,173.82/x
  3. Step 3: Cross multiply
    8,721.33x = 13,083.12 × 3,173.82
  4. Step 4: Simplify right side
    8,721.33x = 41,523,467.92
  5. Step 5: Solve for x
    x = 41,523,467.92/8,721.33
  6. Step 6: Final answer
    x = 4,761.14

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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.