Home / 11,391.21-17,086.94-3,995.85

Finding the Fourth Proportional to 11,391.21, 17,086.94 and 3,995.85

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Solution

The fourth proportional to 11,391.21, 17,086.94 and 3,995.85 is: 5,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.21 : 17,086.94 = 3,995.85 : x
  2. Step 2: Convert to fraction form
    11,391.21/17,086.94 = 3,995.85/x
  3. Step 3: Cross multiply
    11,391.21x = 17,086.94 × 3,995.85
  4. Step 4: Simplify right side
    11,391.21x = 68,276,849.20
  5. Step 5: Solve for x
    x = 68,276,849.20/11,391.21
  6. Step 6: Final answer
    x = 5,993.82

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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.