Home / 11,716.20-17,577.99-5,147.91

Finding the Fourth Proportional to 11,716.20, 17,577.99 and 5,147.91

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Solution

The fourth proportional to 11,716.20, 17,577.99 and 5,147.91 is: 7,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.20 : 17,577.99 = 5,147.91 : x
  2. Step 2: Convert to fraction form
    11,716.20/17,577.99 = 5,147.91/x
  3. Step 3: Cross multiply
    11,716.20x = 17,577.99 × 5,147.91
  4. Step 4: Simplify right side
    11,716.20x = 90,489,910.50
  5. Step 5: Solve for x
    x = 90,489,910.50/11,716.20
  6. Step 6: Final answer
    x = 7,723.49

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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.