Home / 8,424.49-12,638-2,723.55

Finding the Fourth Proportional to 8,424.49, 12,638 and 2,723.55

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Solution

The fourth proportional to 8,424.49, 12,638 and 2,723.55 is: 4,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.49 : 12,638 = 2,723.55 : x
  2. Step 2: Convert to fraction form
    8,424.49/12,638 = 2,723.55/x
  3. Step 3: Cross multiply
    8,424.49x = 12,638 × 2,723.55
  4. Step 4: Simplify right side
    8,424.49x = 34,420,224.90
  5. Step 5: Solve for x
    x = 34,420,224.90/8,424.49
  6. Step 6: Final answer
    x = 4,085.73

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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.