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Finding the Fourth Proportional to 8,586.08, 12,879.12 and 3,968.48

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Solution

The fourth proportional to 8,586.08, 12,879.12 and 3,968.48 is: 5,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,586.08 : 12,879.12 = 3,968.48 : x
  2. Step 2: Convert to fraction form
    8,586.08/12,879.12 = 3,968.48/x
  3. Step 3: Cross multiply
    8,586.08x = 12,879.12 × 3,968.48
  4. Step 4: Simplify right side
    8,586.08x = 51,110,530.14
  5. Step 5: Solve for x
    x = 51,110,530.14/8,586.08
  6. Step 6: Final answer
    x = 5,952.72

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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.