Home / 11,910.76-17,866.92-4,118.56

Finding the Fourth Proportional to 11,910.76, 17,866.92 and 4,118.56

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Solution

The fourth proportional to 11,910.76, 17,866.92 and 4,118.56 is: 6,178.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.76 : 17,866.92 = 4,118.56 : x
  2. Step 2: Convert to fraction form
    11,910.76/17,866.92 = 4,118.56/x
  3. Step 3: Cross multiply
    11,910.76x = 17,866.92 × 4,118.56
  4. Step 4: Simplify right side
    11,910.76x = 73,585,982.04
  5. Step 5: Solve for x
    x = 73,585,982.04/11,910.76
  6. Step 6: Final answer
    x = 6,178.11

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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.