Home / 11,383.62-17,077.86-3,988.53

Finding the Fourth Proportional to 11,383.62, 17,077.86 and 3,988.53

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Solution

The fourth proportional to 11,383.62, 17,077.86 and 3,988.53 is: 5,983.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,383.62 : 17,077.86 = 3,988.53 : x
  2. Step 2: Convert to fraction form
    11,383.62/17,077.86 = 3,988.53/x
  3. Step 3: Cross multiply
    11,383.62x = 17,077.86 × 3,988.53
  4. Step 4: Simplify right side
    11,383.62x = 68,115,556.95
  5. Step 5: Solve for x
    x = 68,115,556.95/11,383.62
  6. Step 6: Final answer
    x = 5,983.65

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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.