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Finding the Fourth Proportional to 8,336.43, 12,495.09 and 2,788.47

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Solution

The fourth proportional to 8,336.43, 12,495.09 and 2,788.47 is: 4,179.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.43 : 12,495.09 = 2,788.47 : x
  2. Step 2: Convert to fraction form
    8,336.43/12,495.09 = 2,788.47/x
  3. Step 3: Cross multiply
    8,336.43x = 12,495.09 × 2,788.47
  4. Step 4: Simplify right side
    8,336.43x = 34,842,183.61
  5. Step 5: Solve for x
    x = 34,842,183.61/8,336.43
  6. Step 6: Final answer
    x = 4,179.51

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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.