Home / 18,245.79-25,162.38-11,519.73

Finding the Fourth Proportional to 18,245.79, 25,162.38 and 11,519.73

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Solution

The fourth proportional to 18,245.79, 25,162.38 and 11,519.73 is: 15,886.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.79 : 25,162.38 = 11,519.73 : x
  2. Step 2: Convert to fraction form
    18,245.79/25,162.38 = 11,519.73/x
  3. Step 3: Cross multiply
    18,245.79x = 25,162.38 × 11,519.73
  4. Step 4: Simplify right side
    18,245.79x = 289,863,823.76
  5. Step 5: Solve for x
    x = 289,863,823.76/18,245.79
  6. Step 6: Final answer
    x = 15,886.61

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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.