Home / 18,481.61-27,678.27-10,666.73

Finding the Fourth Proportional to 18,481.61, 27,678.27 and 10,666.73

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Solution

The fourth proportional to 18,481.61, 27,678.27 and 10,666.73 is: 15,974.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.61 : 27,678.27 = 10,666.73 : x
  2. Step 2: Convert to fraction form
    18,481.61/27,678.27 = 10,666.73/x
  3. Step 3: Cross multiply
    18,481.61x = 27,678.27 × 10,666.73
  4. Step 4: Simplify right side
    18,481.61x = 295,236,632.96
  5. Step 5: Solve for x
    x = 295,236,632.96/18,481.61
  6. Step 6: Final answer
    x = 15,974.62

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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.