Home / 8,221.38-12,334.50-2,378.04

Finding the Fourth Proportional to 8,221.38, 12,334.50 and 2,378.04

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Solution

The fourth proportional to 8,221.38, 12,334.50 and 2,378.04 is: 3,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.38 : 12,334.50 = 2,378.04 : x
  2. Step 2: Convert to fraction form
    8,221.38/12,334.50 = 2,378.04/x
  3. Step 3: Cross multiply
    8,221.38x = 12,334.50 × 2,378.04
  4. Step 4: Simplify right side
    8,221.38x = 29,331,934.38
  5. Step 5: Solve for x
    x = 29,331,934.38/8,221.38
  6. Step 6: Final answer
    x = 3,567.76

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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.