Home / 18,696.42-25,787.52-12,717.48

Finding the Fourth Proportional to 18,696.42, 25,787.52 and 12,717.48

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Solution

The fourth proportional to 18,696.42, 25,787.52 and 12,717.48 is: 17,540.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696.42 : 25,787.52 = 12,717.48 : x
  2. Step 2: Convert to fraction form
    18,696.42/25,787.52 = 12,717.48/x
  3. Step 3: Cross multiply
    18,696.42x = 25,787.52 × 12,717.48
  4. Step 4: Simplify right side
    18,696.42x = 327,952,269.85
  5. Step 5: Solve for x
    x = 327,952,269.85/18,696.42
  6. Step 6: Final answer
    x = 17,540.91

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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.