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Finding the Fourth Proportional to 7,986.82, 11,980.23 and 2,794.18

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Solution

The fourth proportional to 7,986.82, 11,980.23 and 2,794.18 is: 4,191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.82 : 11,980.23 = 2,794.18 : x
  2. Step 2: Convert to fraction form
    7,986.82/11,980.23 = 2,794.18/x
  3. Step 3: Cross multiply
    7,986.82x = 11,980.23 × 2,794.18
  4. Step 4: Simplify right side
    7,986.82x = 33,474,919.06
  5. Step 5: Solve for x
    x = 33,474,919.06/7,986.82
  6. Step 6: Final answer
    x = 4,191.27

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Similar ratio
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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.