Home / 19,689.92-27,177.27-11,197.01

Finding the Fourth Proportional to 19,689.92, 27,177.27 and 11,197.01

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Solution

The fourth proportional to 19,689.92, 27,177.27 and 11,197.01 is: 15,454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.92 : 27,177.27 = 11,197.01 : x
  2. Step 2: Convert to fraction form
    19,689.92/27,177.27 = 11,197.01/x
  3. Step 3: Cross multiply
    19,689.92x = 27,177.27 × 11,197.01
  4. Step 4: Simplify right side
    19,689.92x = 304,304,189.92
  5. Step 5: Solve for x
    x = 304,304,189.92/19,689.92
  6. Step 6: Final answer
    x = 15,454.82

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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.