Home / 11,486.48-17,229.78-4,091.22

Finding the Fourth Proportional to 11,486.48, 17,229.78 and 4,091.22

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Solution

The fourth proportional to 11,486.48, 17,229.78 and 4,091.22 is: 6,136.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.48 : 17,229.78 = 4,091.22 : x
  2. Step 2: Convert to fraction form
    11,486.48/17,229.78 = 4,091.22/x
  3. Step 3: Cross multiply
    11,486.48x = 17,229.78 × 4,091.22
  4. Step 4: Simplify right side
    11,486.48x = 70,490,820.53
  5. Step 5: Solve for x
    x = 70,490,820.53/11,486.48
  6. Step 6: Final answer
    x = 6,136.85

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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.