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Finding the Fourth Proportional to 8,329, 12,496.74 and 3,135.28

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Solution

The fourth proportional to 8,329, 12,496.74 and 3,135.28 is: 4,704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329 : 12,496.74 = 3,135.28 : x
  2. Step 2: Convert to fraction form
    8,329/12,496.74 = 3,135.28/x
  3. Step 3: Cross multiply
    8,329x = 12,496.74 × 3,135.28
  4. Step 4: Simplify right side
    8,329x = 39,180,778.99
  5. Step 5: Solve for x
    x = 39,180,778.99/8,329
  6. Step 6: Final answer
    x = 4,704.14

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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.