Home / 13,766.45-20,616.86-7,517.09

Finding the Fourth Proportional to 13,766.45, 20,616.86 and 7,517.09

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Solution

The fourth proportional to 13,766.45, 20,616.86 and 7,517.09 is: 11,257.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.45 : 20,616.86 = 7,517.09 : x
  2. Step 2: Convert to fraction form
    13,766.45/20,616.86 = 7,517.09/x
  3. Step 3: Cross multiply
    13,766.45x = 20,616.86 × 7,517.09
  4. Step 4: Simplify right side
    13,766.45x = 154,978,862.47
  5. Step 5: Solve for x
    x = 154,978,862.47/13,766.45
  6. Step 6: Final answer
    x = 11,257.73

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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.