Home / 10,781.97-16,163.36-4,206.66

Finding the Fourth Proportional to 10,781.97, 16,163.36 and 4,206.66

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Solution

The fourth proportional to 10,781.97, 16,163.36 and 4,206.66 is: 6,306.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.97 : 16,163.36 = 4,206.66 : x
  2. Step 2: Convert to fraction form
    10,781.97/16,163.36 = 4,206.66/x
  3. Step 3: Cross multiply
    10,781.97x = 16,163.36 × 4,206.66
  4. Step 4: Simplify right side
    10,781.97x = 67,993,759.98
  5. Step 5: Solve for x
    x = 67,993,759.98/10,781.97
  6. Step 6: Final answer
    x = 6,306.25

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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.