Home / 18,431.08-27,630.25-7,183.82

Finding the Fourth Proportional to 18,431.08, 27,630.25 and 7,183.82

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Solution

The fourth proportional to 18,431.08, 27,630.25 and 7,183.82 is: 10,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,431.08 : 27,630.25 = 7,183.82 : x
  2. Step 2: Convert to fraction form
    18,431.08/27,630.25 = 7,183.82/x
  3. Step 3: Cross multiply
    18,431.08x = 27,630.25 × 7,183.82
  4. Step 4: Simplify right side
    18,431.08x = 198,490,793.67
  5. Step 5: Solve for x
    x = 198,490,793.67/18,431.08
  6. Step 6: Final answer
    x = 10,769.35

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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.