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Finding the Fourth Proportional to 8,515.58, 12,773.91 and 2,672.42

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Solution

The fourth proportional to 8,515.58, 12,773.91 and 2,672.42 is: 4,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.58 : 12,773.91 = 2,672.42 : x
  2. Step 2: Convert to fraction form
    8,515.58/12,773.91 = 2,672.42/x
  3. Step 3: Cross multiply
    8,515.58x = 12,773.91 × 2,672.42
  4. Step 4: Simplify right side
    8,515.58x = 34,137,252.56
  5. Step 5: Solve for x
    x = 34,137,252.56/8,515.58
  6. Step 6: Final answer
    x = 4,008.80

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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.