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Finding the Fourth Proportional to 8,432.64, 12,648.98 and 2,589.24

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Solution

The fourth proportional to 8,432.64, 12,648.98 and 2,589.24 is: 3,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,432.64 : 12,648.98 = 2,589.24 : x
  2. Step 2: Convert to fraction form
    8,432.64/12,648.98 = 2,589.24/x
  3. Step 3: Cross multiply
    8,432.64x = 12,648.98 × 2,589.24
  4. Step 4: Simplify right side
    8,432.64x = 32,751,244.98
  5. Step 5: Solve for x
    x = 32,751,244.98/8,432.64
  6. Step 6: Final answer
    x = 3,883.87

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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.