Home / 11,771.92-17,660.31-3,981.34

Finding the Fourth Proportional to 11,771.92, 17,660.31 and 3,981.34

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Solution

The fourth proportional to 11,771.92, 17,660.31 and 3,981.34 is: 5,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.92 : 17,660.31 = 3,981.34 : x
  2. Step 2: Convert to fraction form
    11,771.92/17,660.31 = 3,981.34/x
  3. Step 3: Cross multiply
    11,771.92x = 17,660.31 × 3,981.34
  4. Step 4: Simplify right side
    11,771.92x = 70,311,698.62
  5. Step 5: Solve for x
    x = 70,311,698.62/11,771.92
  6. Step 6: Final answer
    x = 5,972.83

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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.