Home / 18,146.38-27,221.28-7,053.92

Finding the Fourth Proportional to 18,146.38, 27,221.28 and 7,053.92

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Solution

The fourth proportional to 18,146.38, 27,221.28 and 7,053.92 is: 10,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.38 : 27,221.28 = 7,053.92 : x
  2. Step 2: Convert to fraction form
    18,146.38/27,221.28 = 7,053.92/x
  3. Step 3: Cross multiply
    18,146.38x = 27,221.28 × 7,053.92
  4. Step 4: Simplify right side
    18,146.38x = 192,016,731.42
  5. Step 5: Solve for x
    x = 192,016,731.42/18,146.38
  6. Step 6: Final answer
    x = 10,581.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.