Home / 18,408.55-27,640.52-11,045.96

Finding the Fourth Proportional to 18,408.55, 27,640.52 and 11,045.96

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Solution

The fourth proportional to 18,408.55, 27,640.52 and 11,045.96 is: 16,585.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,408.55 : 27,640.52 = 11,045.96 : x
  2. Step 2: Convert to fraction form
    18,408.55/27,640.52 = 11,045.96/x
  3. Step 3: Cross multiply
    18,408.55x = 27,640.52 × 11,045.96
  4. Step 4: Simplify right side
    18,408.55x = 305,316,078.30
  5. Step 5: Solve for x
    x = 305,316,078.30/18,408.55
  6. Step 6: Final answer
    x = 16,585.56

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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.