Home / 19,910.78-27,475.46-11,843.99

Finding the Fourth Proportional to 19,910.78, 27,475.46 and 11,843.99

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Solution

The fourth proportional to 19,910.78, 27,475.46 and 11,843.99 is: 16,343.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.78 : 27,475.46 = 11,843.99 : x
  2. Step 2: Convert to fraction form
    19,910.78/27,475.46 = 11,843.99/x
  3. Step 3: Cross multiply
    19,910.78x = 27,475.46 × 11,843.99
  4. Step 4: Simplify right side
    19,910.78x = 325,419,073.49
  5. Step 5: Solve for x
    x = 325,419,073.49/19,910.78
  6. Step 6: Final answer
    x = 16,343.86

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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.