Home / 18,286.72-27,427.28-5,805.11

Finding the Fourth Proportional to 18,286.72, 27,427.28 and 5,805.11

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Solution

The fourth proportional to 18,286.72, 27,427.28 and 5,805.11 is: 8,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.72 : 27,427.28 = 5,805.11 : x
  2. Step 2: Convert to fraction form
    18,286.72/27,427.28 = 5,805.11/x
  3. Step 3: Cross multiply
    18,286.72x = 27,427.28 × 5,805.11
  4. Step 4: Simplify right side
    18,286.72x = 159,218,416.94
  5. Step 5: Solve for x
    x = 159,218,416.94/18,286.72
  6. Step 6: Final answer
    x = 8,706.78

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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.