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Finding the Fourth Proportional to 8,589.44, 12,883.44 and 4,427.20

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Solution

The fourth proportional to 8,589.44, 12,883.44 and 4,427.20 is: 6,640.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.44 : 12,883.44 = 4,427.20 : x
  2. Step 2: Convert to fraction form
    8,589.44/12,883.44 = 4,427.20/x
  3. Step 3: Cross multiply
    8,589.44x = 12,883.44 × 4,427.20
  4. Step 4: Simplify right side
    8,589.44x = 57,037,565.57
  5. Step 5: Solve for x
    x = 57,037,565.57/8,589.44
  6. Step 6: Final answer
    x = 6,640.43

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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.