Home / 8,133.16-12,191.36-3,200.80

Finding the Fourth Proportional to 8,133.16, 12,191.36 and 3,200.80

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Solution

The fourth proportional to 8,133.16, 12,191.36 and 3,200.80 is: 4,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.16 : 12,191.36 = 3,200.80 : x
  2. Step 2: Convert to fraction form
    8,133.16/12,191.36 = 3,200.80/x
  3. Step 3: Cross multiply
    8,133.16x = 12,191.36 × 3,200.80
  4. Step 4: Simplify right side
    8,133.16x = 39,022,105.09
  5. Step 5: Solve for x
    x = 39,022,105.09/8,133.16
  6. Step 6: Final answer
    x = 4,797.90

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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.