Home / 12,255.68-18,383.52-5,229.79

Finding the Fourth Proportional to 12,255.68, 18,383.52 and 5,229.79

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Solution

The fourth proportional to 12,255.68, 18,383.52 and 5,229.79 is: 7,844.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.68 : 18,383.52 = 5,229.79 : x
  2. Step 2: Convert to fraction form
    12,255.68/18,383.52 = 5,229.79/x
  3. Step 3: Cross multiply
    12,255.68x = 18,383.52 × 5,229.79
  4. Step 4: Simplify right side
    12,255.68x = 96,141,949.06
  5. Step 5: Solve for x
    x = 96,141,949.06/12,255.68
  6. Step 6: Final answer
    x = 7,844.69

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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.