Home / 12,491.73-18,738.41-3,727.53

Finding the Fourth Proportional to 12,491.73, 18,738.41 and 3,727.53

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Solution

The fourth proportional to 12,491.73, 18,738.41 and 3,727.53 is: 5,591.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.73 : 18,738.41 = 3,727.53 : x
  2. Step 2: Convert to fraction form
    12,491.73/18,738.41 = 3,727.53/x
  3. Step 3: Cross multiply
    12,491.73x = 18,738.41 × 3,727.53
  4. Step 4: Simplify right side
    12,491.73x = 69,847,966.79
  5. Step 5: Solve for x
    x = 69,847,966.79/12,491.73
  6. Step 6: Final answer
    x = 5,591.54

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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.