Home / 12,441.62-17,163.99-8,187.21

Finding the Fourth Proportional to 12,441.62, 17,163.99 and 8,187.21

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Solution

The fourth proportional to 12,441.62, 17,163.99 and 8,187.21 is: 11,294.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.62 : 17,163.99 = 8,187.21 : x
  2. Step 2: Convert to fraction form
    12,441.62/17,163.99 = 8,187.21/x
  3. Step 3: Cross multiply
    12,441.62x = 17,163.99 × 8,187.21
  4. Step 4: Simplify right side
    12,441.62x = 140,525,190.57
  5. Step 5: Solve for x
    x = 140,525,190.57/12,441.62
  6. Step 6: Final answer
    x = 11,294.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.