Home / 8,491.85-12,735.50-2,567.21

Finding the Fourth Proportional to 8,491.85, 12,735.50 and 2,567.21

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Solution

The fourth proportional to 8,491.85, 12,735.50 and 2,567.21 is: 3,850.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.85 : 12,735.50 = 2,567.21 : x
  2. Step 2: Convert to fraction form
    8,491.85/12,735.50 = 2,567.21/x
  3. Step 3: Cross multiply
    8,491.85x = 12,735.50 × 2,567.21
  4. Step 4: Simplify right side
    8,491.85x = 32,694,626.44
  5. Step 5: Solve for x
    x = 32,694,626.44/8,491.85
  6. Step 6: Final answer
    x = 3,850.12

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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.