Home / 8,169.28-12,249.60-2,974.72

Finding the Fourth Proportional to 8,169.28, 12,249.60 and 2,974.72

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Solution

The fourth proportional to 8,169.28, 12,249.60 and 2,974.72 is: 4,460.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.28 : 12,249.60 = 2,974.72 : x
  2. Step 2: Convert to fraction form
    8,169.28/12,249.60 = 2,974.72/x
  3. Step 3: Cross multiply
    8,169.28x = 12,249.60 × 2,974.72
  4. Step 4: Simplify right side
    8,169.28x = 36,439,130.11
  5. Step 5: Solve for x
    x = 36,439,130.11/8,169.28
  6. Step 6: Final answer
    x = 4,460.51

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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.