Home / 18,015.22-24,863.25-10,939.78

Finding the Fourth Proportional to 18,015.22, 24,863.25 and 10,939.78

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Solution

The fourth proportional to 18,015.22, 24,863.25 and 10,939.78 is: 15,098.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.22 : 24,863.25 = 10,939.78 : x
  2. Step 2: Convert to fraction form
    18,015.22/24,863.25 = 10,939.78/x
  3. Step 3: Cross multiply
    18,015.22x = 24,863.25 × 10,939.78
  4. Step 4: Simplify right side
    18,015.22x = 271,998,485.09
  5. Step 5: Solve for x
    x = 271,998,485.09/18,015.22
  6. Step 6: Final answer
    x = 15,098.26

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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.