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Finding the Fourth Proportional to 11,481.33, 15,845.82 and 6,377.99

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Solution

The fourth proportional to 11,481.33, 15,845.82 and 6,377.99 is: 8,802.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.33 : 15,845.82 = 6,377.99 : x
  2. Step 2: Convert to fraction form
    11,481.33/15,845.82 = 6,377.99/x
  3. Step 3: Cross multiply
    11,481.33x = 15,845.82 × 6,377.99
  4. Step 4: Simplify right side
    11,481.33x = 101,064,481.50
  5. Step 5: Solve for x
    x = 101,064,481.50/11,481.33
  6. Step 6: Final answer
    x = 8,802.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.