Home / 18,747.72-25,861.62-12,025.88

Finding the Fourth Proportional to 18,747.72, 25,861.62 and 12,025.88

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Solution

The fourth proportional to 18,747.72, 25,861.62 and 12,025.88 is: 16,589.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.72 : 25,861.62 = 12,025.88 : x
  2. Step 2: Convert to fraction form
    18,747.72/25,861.62 = 12,025.88/x
  3. Step 3: Cross multiply
    18,747.72x = 25,861.62 × 12,025.88
  4. Step 4: Simplify right side
    18,747.72x = 311,008,738.73
  5. Step 5: Solve for x
    x = 311,008,738.73/18,747.72
  6. Step 6: Final answer
    x = 16,589.15

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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.