Home / 13,517.73-20,278.52-4,158.53

Finding the Fourth Proportional to 13,517.73, 20,278.52 and 4,158.53

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Solution

The fourth proportional to 13,517.73, 20,278.52 and 4,158.53 is: 6,238.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.73 : 20,278.52 = 4,158.53 : x
  2. Step 2: Convert to fraction form
    13,517.73/20,278.52 = 4,158.53/x
  3. Step 3: Cross multiply
    13,517.73x = 20,278.52 × 4,158.53
  4. Step 4: Simplify right side
    13,517.73x = 84,328,732.38
  5. Step 5: Solve for x
    x = 84,328,732.38/13,517.73
  6. Step 6: Final answer
    x = 6,238.38

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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.