Home / 8,217.22-12,320.90-3,769.32

Finding the Fourth Proportional to 8,217.22, 12,320.90 and 3,769.32

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Solution

The fourth proportional to 8,217.22, 12,320.90 and 3,769.32 is: 5,651.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.22 : 12,320.90 = 3,769.32 : x
  2. Step 2: Convert to fraction form
    8,217.22/12,320.90 = 3,769.32/x
  3. Step 3: Cross multiply
    8,217.22x = 12,320.90 × 3,769.32
  4. Step 4: Simplify right side
    8,217.22x = 46,441,414.79
  5. Step 5: Solve for x
    x = 46,441,414.79/8,217.22
  6. Step 6: Final answer
    x = 5,651.72

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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.