Home / 10,786.70-16,180.04-3,391.81

Finding the Fourth Proportional to 10,786.70, 16,180.04 and 3,391.81

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Solution

The fourth proportional to 10,786.70, 16,180.04 and 3,391.81 is: 5,087.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.70 : 16,180.04 = 3,391.81 : x
  2. Step 2: Convert to fraction form
    10,786.70/16,180.04 = 3,391.81/x
  3. Step 3: Cross multiply
    10,786.70x = 16,180.04 × 3,391.81
  4. Step 4: Simplify right side
    10,786.70x = 54,879,540.57
  5. Step 5: Solve for x
    x = 54,879,540.57/10,786.70
  6. Step 6: Final answer
    x = 5,087.70

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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.