Home / 19,689.94-27,177.29-11,197.02

Finding the Fourth Proportional to 19,689.94, 27,177.29 and 11,197.02

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Solution

The fourth proportional to 19,689.94, 27,177.29 and 11,197.02 is: 15,454.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.94 : 27,177.29 = 11,197.02 : x
  2. Step 2: Convert to fraction form
    19,689.94/27,177.29 = 11,197.02/x
  3. Step 3: Cross multiply
    19,689.94x = 27,177.29 × 11,197.02
  4. Step 4: Simplify right side
    19,689.94x = 304,304,659.68
  5. Step 5: Solve for x
    x = 304,304,659.68/19,689.94
  6. Step 6: Final answer
    x = 15,454.83

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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.