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Finding the Fourth Proportional to 9,894.87, 14,849.82 and 3,660.78

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Solution

The fourth proportional to 9,894.87, 14,849.82 and 3,660.78 is: 5,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,894.87 : 14,849.82 = 3,660.78 : x
  2. Step 2: Convert to fraction form
    9,894.87/14,849.82 = 3,660.78/x
  3. Step 3: Cross multiply
    9,894.87x = 14,849.82 × 3,660.78
  4. Step 4: Simplify right side
    9,894.87x = 54,361,924.06
  5. Step 5: Solve for x
    x = 54,361,924.06/9,894.87
  6. Step 6: Final answer
    x = 5,493.95

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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.