Home / 18,638.92-25,729.78-13,324.52

Finding the Fourth Proportional to 18,638.92, 25,729.78 and 13,324.52

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Solution

The fourth proportional to 18,638.92, 25,729.78 and 13,324.52 is: 18,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.92 : 25,729.78 = 13,324.52 : x
  2. Step 2: Convert to fraction form
    18,638.92/25,729.78 = 13,324.52/x
  3. Step 3: Cross multiply
    18,638.92x = 25,729.78 × 13,324.52
  4. Step 4: Simplify right side
    18,638.92x = 342,836,968.21
  5. Step 5: Solve for x
    x = 342,836,968.21/18,638.92
  6. Step 6: Final answer
    x = 18,393.61

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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.