Home / 11,910.43-17,868.36-4,119.23

Finding the Fourth Proportional to 11,910.43, 17,868.36 and 4,119.23

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Solution

The fourth proportional to 11,910.43, 17,868.36 and 4,119.23 is: 6,179.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.43 : 17,868.36 = 4,119.23 : x
  2. Step 2: Convert to fraction form
    11,910.43/17,868.36 = 4,119.23/x
  3. Step 3: Cross multiply
    11,910.43x = 17,868.36 × 4,119.23
  4. Step 4: Simplify right side
    11,910.43x = 73,603,884.56
  5. Step 5: Solve for x
    x = 73,603,884.56/11,910.43
  6. Step 6: Final answer
    x = 6,179.79

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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.