Home / 11,388.97-17,083.83-3,998.57

Finding the Fourth Proportional to 11,388.97, 17,083.83 and 3,998.57

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Solution

The fourth proportional to 11,388.97, 17,083.83 and 3,998.57 is: 5,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.97 : 17,083.83 = 3,998.57 : x
  2. Step 2: Convert to fraction form
    11,388.97/17,083.83 = 3,998.57/x
  3. Step 3: Cross multiply
    11,388.97x = 17,083.83 × 3,998.57
  4. Step 4: Simplify right side
    11,388.97x = 68,310,890.12
  5. Step 5: Solve for x
    x = 68,310,890.12/11,388.97
  6. Step 6: Final answer
    x = 5,997.99

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Double scale
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1.5x scale

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.