Home / 11,906.49-17,857.97-3,142.02

Finding the Fourth Proportional to 11,906.49, 17,857.97 and 3,142.02

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Solution

The fourth proportional to 11,906.49, 17,857.97 and 3,142.02 is: 4,712.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.49 : 17,857.97 = 3,142.02 : x
  2. Step 2: Convert to fraction form
    11,906.49/17,857.97 = 3,142.02/x
  3. Step 3: Cross multiply
    11,906.49x = 17,857.97 × 3,142.02
  4. Step 4: Simplify right side
    11,906.49x = 56,110,098.90
  5. Step 5: Solve for x
    x = 56,110,098.90/11,906.49
  6. Step 6: Final answer
    x = 4,712.56

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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.