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Finding the Fourth Proportional to 8,589.44, 12,867.84 and 7,674.24

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Solution

The fourth proportional to 8,589.44, 12,867.84 and 7,674.24 is: 11,496.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.44 : 12,867.84 = 7,674.24 : x
  2. Step 2: Convert to fraction form
    8,589.44/12,867.84 = 7,674.24/x
  3. Step 3: Cross multiply
    8,589.44x = 12,867.84 × 7,674.24
  4. Step 4: Simplify right side
    8,589.44x = 98,750,892.44
  5. Step 5: Solve for x
    x = 98,750,892.44/8,589.44
  6. Step 6: Final answer
    x = 11,496.78

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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.