Home / 8,310.38-12,466.11-3,116.39

Finding the Fourth Proportional to 8,310.38, 12,466.11 and 3,116.39

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Solution

The fourth proportional to 8,310.38, 12,466.11 and 3,116.39 is: 4,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.38 : 12,466.11 = 3,116.39 : x
  2. Step 2: Convert to fraction form
    8,310.38/12,466.11 = 3,116.39/x
  3. Step 3: Cross multiply
    8,310.38x = 12,466.11 × 3,116.39
  4. Step 4: Simplify right side
    8,310.38x = 38,849,198.21
  5. Step 5: Solve for x
    x = 38,849,198.21/8,310.38
  6. Step 6: Final answer
    x = 4,674.78

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1.5x scale

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.