Home / 18,227.11-27,348.60-6,389.40

Finding the Fourth Proportional to 18,227.11, 27,348.60 and 6,389.40

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Solution

The fourth proportional to 18,227.11, 27,348.60 and 6,389.40 is: 9,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,227.11 : 27,348.60 = 6,389.40 : x
  2. Step 2: Convert to fraction form
    18,227.11/27,348.60 = 6,389.40/x
  3. Step 3: Cross multiply
    18,227.11x = 27,348.60 × 6,389.40
  4. Step 4: Simplify right side
    18,227.11x = 174,741,144.84
  5. Step 5: Solve for x
    x = 174,741,144.84/18,227.11
  6. Step 6: Final answer
    x = 9,586.88

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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.