Home / 8,105.12-11,186.02-4,520.66

Finding the Fourth Proportional to 8,105.12, 11,186.02 and 4,520.66

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Solution

The fourth proportional to 8,105.12, 11,186.02 and 4,520.66 is: 6,239.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.12 : 11,186.02 = 4,520.66 : x
  2. Step 2: Convert to fraction form
    8,105.12/11,186.02 = 4,520.66/x
  3. Step 3: Cross multiply
    8,105.12x = 11,186.02 × 4,520.66
  4. Step 4: Simplify right side
    8,105.12x = 50,568,114.64
  5. Step 5: Solve for x
    x = 50,568,114.64/8,105.12
  6. Step 6: Final answer
    x = 6,239.04

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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.