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Finding the Fourth Proportional to 8,491.44, 12,739.32 and 3,295.56

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Solution

The fourth proportional to 8,491.44, 12,739.32 and 3,295.56 is: 4,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.44 : 12,739.32 = 3,295.56 : x
  2. Step 2: Convert to fraction form
    8,491.44/12,739.32 = 3,295.56/x
  3. Step 3: Cross multiply
    8,491.44x = 12,739.32 × 3,295.56
  4. Step 4: Simplify right side
    8,491.44x = 41,983,193.42
  5. Step 5: Solve for x
    x = 41,983,193.42/8,491.44
  6. Step 6: Final answer
    x = 4,944.18

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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.