Home / 8,208.38-12,310.72-3,276.70

Finding the Fourth Proportional to 8,208.38, 12,310.72 and 3,276.70

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Solution

The fourth proportional to 8,208.38, 12,310.72 and 3,276.70 is: 4,914.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.38 : 12,310.72 = 3,276.70 : x
  2. Step 2: Convert to fraction form
    8,208.38/12,310.72 = 3,276.70/x
  3. Step 3: Cross multiply
    8,208.38x = 12,310.72 × 3,276.70
  4. Step 4: Simplify right side
    8,208.38x = 40,338,497.26
  5. Step 5: Solve for x
    x = 40,338,497.26/8,208.38
  6. Step 6: Final answer
    x = 4,914.31

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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.