Home / 18,247.05-25,180.97-9,863.55

Finding the Fourth Proportional to 18,247.05, 25,180.97 and 9,863.55

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Solution

The fourth proportional to 18,247.05, 25,180.97 and 9,863.55 is: 13,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,247.05 : 25,180.97 = 9,863.55 : x
  2. Step 2: Convert to fraction form
    18,247.05/25,180.97 = 9,863.55/x
  3. Step 3: Cross multiply
    18,247.05x = 25,180.97 × 9,863.55
  4. Step 4: Simplify right side
    18,247.05x = 248,373,707.33
  5. Step 5: Solve for x
    x = 248,373,707.33/18,247.05
  6. Step 6: Final answer
    x = 13,611.72

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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.