Home / 8,216.55-12,329.07-3,286.08

Finding the Fourth Proportional to 8,216.55, 12,329.07 and 3,286.08

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Solution

The fourth proportional to 8,216.55, 12,329.07 and 3,286.08 is: 4,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.55 : 12,329.07 = 3,286.08 : x
  2. Step 2: Convert to fraction form
    8,216.55/12,329.07 = 3,286.08/x
  3. Step 3: Cross multiply
    8,216.55x = 12,329.07 × 3,286.08
  4. Step 4: Simplify right side
    8,216.55x = 40,514,310.35
  5. Step 5: Solve for x
    x = 40,514,310.35/8,216.55
  6. Step 6: Final answer
    x = 4,930.82

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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.