Home / 18,517.41-25,537.94-12,861.58

Finding the Fourth Proportional to 18,517.41, 25,537.94 and 12,861.58

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Solution

The fourth proportional to 18,517.41, 25,537.94 and 12,861.58 is: 17,737.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.41 : 25,537.94 = 12,861.58 : x
  2. Step 2: Convert to fraction form
    18,517.41/25,537.94 = 12,861.58/x
  3. Step 3: Cross multiply
    18,517.41x = 25,537.94 × 12,861.58
  4. Step 4: Simplify right side
    18,517.41x = 328,458,258.35
  5. Step 5: Solve for x
    x = 328,458,258.35/18,517.41
  6. Step 6: Final answer
    x = 17,737.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.