Home / 11,868.75-16,378.92-6,563.61

Finding the Fourth Proportional to 11,868.75, 16,378.92 and 6,563.61

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Solution

The fourth proportional to 11,868.75, 16,378.92 and 6,563.61 is: 9,057.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.75 : 16,378.92 = 6,563.61 : x
  2. Step 2: Convert to fraction form
    11,868.75/16,378.92 = 6,563.61/x
  3. Step 3: Cross multiply
    11,868.75x = 16,378.92 × 6,563.61
  4. Step 4: Simplify right side
    11,868.75x = 107,504,843.10
  5. Step 5: Solve for x
    x = 107,504,843.10/11,868.75
  6. Step 6: Final answer
    x = 9,057.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.