Home / 8,132.62-12,206.48-3,205.66

Finding the Fourth Proportional to 8,132.62, 12,206.48 and 3,205.66

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Solution

The fourth proportional to 8,132.62, 12,206.48 and 3,205.66 is: 4,811.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.62 : 12,206.48 = 3,205.66 : x
  2. Step 2: Convert to fraction form
    8,132.62/12,206.48 = 3,205.66/x
  3. Step 3: Cross multiply
    8,132.62x = 12,206.48 × 3,205.66
  4. Step 4: Simplify right side
    8,132.62x = 39,129,824.68
  5. Step 5: Solve for x
    x = 39,129,824.68/8,132.62
  6. Step 6: Final answer
    x = 4,811.47

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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.