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Finding the Fourth Proportional to 8,591.08, 11,879.56 and 6,819.62

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Solution

The fourth proportional to 8,591.08, 11,879.56 and 6,819.62 is: 9,430.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.08 : 11,879.56 = 6,819.62 : x
  2. Step 2: Convert to fraction form
    8,591.08/11,879.56 = 6,819.62/x
  3. Step 3: Cross multiply
    8,591.08x = 11,879.56 × 6,819.62
  4. Step 4: Simplify right side
    8,591.08x = 81,014,084.97
  5. Step 5: Solve for x
    x = 81,014,084.97/8,591.08
  6. Step 6: Final answer
    x = 9,430.02

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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.