Home / 16,836.80-25,255.20-11,891.75

Finding the Fourth Proportional to 16,836.80, 25,255.20 and 11,891.75

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Solution

The fourth proportional to 16,836.80, 25,255.20 and 11,891.75 is: 17,837.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,836.80 : 25,255.20 = 11,891.75 : x
  2. Step 2: Convert to fraction form
    16,836.80/25,255.20 = 11,891.75/x
  3. Step 3: Cross multiply
    16,836.80x = 25,255.20 × 11,891.75
  4. Step 4: Simplify right side
    16,836.80x = 300,328,524.60
  5. Step 5: Solve for x
    x = 300,328,524.60/16,836.80
  6. Step 6: Final answer
    x = 17,837.63

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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.