Home / 19,917.68-27,489.41-11,964.29

Finding the Fourth Proportional to 19,917.68, 27,489.41 and 11,964.29

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Solution

The fourth proportional to 19,917.68, 27,489.41 and 11,964.29 is: 16,512.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.68 : 27,489.41 = 11,964.29 : x
  2. Step 2: Convert to fraction form
    19,917.68/27,489.41 = 11,964.29/x
  3. Step 3: Cross multiply
    19,917.68x = 27,489.41 × 11,964.29
  4. Step 4: Simplify right side
    19,917.68x = 328,891,273.17
  5. Step 5: Solve for x
    x = 328,891,273.17/19,917.68
  6. Step 6: Final answer
    x = 16,512.53

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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.