Home / 7,986.60-11,979.90-6,334.20

Finding the Fourth Proportional to 7,986.60, 11,979.90 and 6,334.20

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Solution

The fourth proportional to 7,986.60, 11,979.90 and 6,334.20 is: 9,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.60 : 11,979.90 = 6,334.20 : x
  2. Step 2: Convert to fraction form
    7,986.60/11,979.90 = 6,334.20/x
  3. Step 3: Cross multiply
    7,986.60x = 11,979.90 × 6,334.20
  4. Step 4: Simplify right side
    7,986.60x = 75,883,082.58
  5. Step 5: Solve for x
    x = 75,883,082.58/7,986.60
  6. Step 6: Final answer
    x = 9,501.30

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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.