Home / 18,081.60-27,126.69-7,545.76

Finding the Fourth Proportional to 18,081.60, 27,126.69 and 7,545.76

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Solution

The fourth proportional to 18,081.60, 27,126.69 and 7,545.76 is: 11,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.60 : 27,126.69 = 7,545.76 : x
  2. Step 2: Convert to fraction form
    18,081.60/27,126.69 = 7,545.76/x
  3. Step 3: Cross multiply
    18,081.60x = 27,126.69 × 7,545.76
  4. Step 4: Simplify right side
    18,081.60x = 204,691,554.54
  5. Step 5: Solve for x
    x = 204,691,554.54/18,081.60
  6. Step 6: Final answer
    x = 11,320.44

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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.