Home / 8,179.12-11,287.32-4,453.12

Finding the Fourth Proportional to 8,179.12, 11,287.32 and 4,453.12

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Solution

The fourth proportional to 8,179.12, 11,287.32 and 4,453.12 is: 6,145.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.12 : 11,287.32 = 4,453.12 : x
  2. Step 2: Convert to fraction form
    8,179.12/11,287.32 = 4,453.12/x
  3. Step 3: Cross multiply
    8,179.12x = 11,287.32 × 4,453.12
  4. Step 4: Simplify right side
    8,179.12x = 50,263,790.44
  5. Step 5: Solve for x
    x = 50,263,790.44/8,179.12
  6. Step 6: Final answer
    x = 6,145.38

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Half scale
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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.