Home / 8,179.58-11,287.87-4,642.85

Finding the Fourth Proportional to 8,179.58, 11,287.87 and 4,642.85

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Solution

The fourth proportional to 8,179.58, 11,287.87 and 4,642.85 is: 6,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.58 : 11,287.87 = 4,642.85 : x
  2. Step 2: Convert to fraction form
    8,179.58/11,287.87 = 4,642.85/x
  3. Step 3: Cross multiply
    8,179.58x = 11,287.87 × 4,642.85
  4. Step 4: Simplify right side
    8,179.58x = 52,407,819.18
  5. Step 5: Solve for x
    x = 52,407,819.18/8,179.58
  6. Step 6: Final answer
    x = 6,407.16

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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.