Home / 8,122.21-12,184.82-2,576.95

Finding the Fourth Proportional to 8,122.21, 12,184.82 and 2,576.95

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Solution

The fourth proportional to 8,122.21, 12,184.82 and 2,576.95 is: 3,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.21 : 12,184.82 = 2,576.95 : x
  2. Step 2: Convert to fraction form
    8,122.21/12,184.82 = 2,576.95/x
  3. Step 3: Cross multiply
    8,122.21x = 12,184.82 × 2,576.95
  4. Step 4: Simplify right side
    8,122.21x = 31,399,671.90
  5. Step 5: Solve for x
    x = 31,399,671.90/8,122.21
  6. Step 6: Final answer
    x = 3,865.90

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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.