Home / 19,882.68-27,436.50-11,499.72

Finding the Fourth Proportional to 19,882.68, 27,436.50 and 11,499.72

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Solution

The fourth proportional to 19,882.68, 27,436.50 and 11,499.72 is: 15,868.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,882.68 : 27,436.50 = 11,499.72 : x
  2. Step 2: Convert to fraction form
    19,882.68/27,436.50 = 11,499.72/x
  3. Step 3: Cross multiply
    19,882.68x = 27,436.50 × 11,499.72
  4. Step 4: Simplify right side
    19,882.68x = 315,512,067.78
  5. Step 5: Solve for x
    x = 315,512,067.78/19,882.68
  6. Step 6: Final answer
    x = 15,868.69

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1.5x scale

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.