Home / 11,939.37-17,910.18-4,919.85

Finding the Fourth Proportional to 11,939.37, 17,910.18 and 4,919.85

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Solution

The fourth proportional to 11,939.37, 17,910.18 and 4,919.85 is: 7,380.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.37 : 17,910.18 = 4,919.85 : x
  2. Step 2: Convert to fraction form
    11,939.37/17,910.18 = 4,919.85/x
  3. Step 3: Cross multiply
    11,939.37x = 17,910.18 × 4,919.85
  4. Step 4: Simplify right side
    11,939.37x = 88,115,399.07
  5. Step 5: Solve for x
    x = 88,115,399.07/11,939.37
  6. Step 6: Final answer
    x = 7,380.24

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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.