Home / 10,481.88-15,721.08-3,906.32

Finding the Fourth Proportional to 10,481.88, 15,721.08 and 3,906.32

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Solution

The fourth proportional to 10,481.88, 15,721.08 and 3,906.32 is: 5,858.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,481.88 : 15,721.08 = 3,906.32 : x
  2. Step 2: Convert to fraction form
    10,481.88/15,721.08 = 3,906.32/x
  3. Step 3: Cross multiply
    10,481.88x = 15,721.08 × 3,906.32
  4. Step 4: Simplify right side
    10,481.88x = 61,411,569.23
  5. Step 5: Solve for x
    x = 61,411,569.23/10,481.88
  6. Step 6: Final answer
    x = 5,858.83

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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.