Home / 8,961.33-13,442.82-2,721.36

Finding the Fourth Proportional to 8,961.33, 13,442.82 and 2,721.36

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Solution

The fourth proportional to 8,961.33, 13,442.82 and 2,721.36 is: 4,082.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.33 : 13,442.82 = 2,721.36 : x
  2. Step 2: Convert to fraction form
    8,961.33/13,442.82 = 2,721.36/x
  3. Step 3: Cross multiply
    8,961.33x = 13,442.82 × 2,721.36
  4. Step 4: Simplify right side
    8,961.33x = 36,582,752.64
  5. Step 5: Solve for x
    x = 36,582,752.64/8,961.33
  6. Step 6: Final answer
    x = 4,082.29

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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.