Home / 12,371.55-18,557.73-3,605.73

Finding the Fourth Proportional to 12,371.55, 18,557.73 and 3,605.73

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Solution

The fourth proportional to 12,371.55, 18,557.73 and 3,605.73 is: 5,408.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,371.55 : 18,557.73 = 3,605.73 : x
  2. Step 2: Convert to fraction form
    12,371.55/18,557.73 = 3,605.73/x
  3. Step 3: Cross multiply
    12,371.55x = 18,557.73 × 3,605.73
  4. Step 4: Simplify right side
    12,371.55x = 66,914,163.79
  5. Step 5: Solve for x
    x = 66,914,163.79/12,371.55
  6. Step 6: Final answer
    x = 5,408.71

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1.5x scale

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.