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Finding the Fourth Proportional to 8,515.66, 12,773.55 and 2,968.99

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Solution

The fourth proportional to 8,515.66, 12,773.55 and 2,968.99 is: 4,453.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.66 : 12,773.55 = 2,968.99 : x
  2. Step 2: Convert to fraction form
    8,515.66/12,773.55 = 2,968.99/x
  3. Step 3: Cross multiply
    8,515.66x = 12,773.55 × 2,968.99
  4. Step 4: Simplify right side
    8,515.66x = 37,924,542.21
  5. Step 5: Solve for x
    x = 37,924,542.21/8,515.66
  6. Step 6: Final answer
    x = 4,453.51

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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.