Home / 18,944.05-28,422.91-8,120.26

Finding the Fourth Proportional to 18,944.05, 28,422.91 and 8,120.26

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Solution

The fourth proportional to 18,944.05, 28,422.91 and 8,120.26 is: 12,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.05 : 28,422.91 = 8,120.26 : x
  2. Step 2: Convert to fraction form
    18,944.05/28,422.91 = 8,120.26/x
  3. Step 3: Cross multiply
    18,944.05x = 28,422.91 × 8,120.26
  4. Step 4: Simplify right side
    18,944.05x = 230,801,458.42
  5. Step 5: Solve for x
    x = 230,801,458.42/18,944.05
  6. Step 6: Final answer
    x = 12,183.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.