Home / 11,640.11-17,459.78-3,742.61

Finding the Fourth Proportional to 11,640.11, 17,459.78 and 3,742.61

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Solution

The fourth proportional to 11,640.11, 17,459.78 and 3,742.61 is: 5,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.11 : 17,459.78 = 3,742.61 : x
  2. Step 2: Convert to fraction form
    11,640.11/17,459.78 = 3,742.61/x
  3. Step 3: Cross multiply
    11,640.11x = 17,459.78 × 3,742.61
  4. Step 4: Simplify right side
    11,640.11x = 65,345,041.21
  5. Step 5: Solve for x
    x = 65,345,041.21/11,640.11
  6. Step 6: Final answer
    x = 5,613.78

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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.