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Finding the Fourth Proportional to 6,626.78, 9,942.44 and 3,338.99

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Solution

The fourth proportional to 6,626.78, 9,942.44 and 3,338.99 is: 5,009.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.78 : 9,942.44 = 3,338.99 : x
  2. Step 2: Convert to fraction form
    6,626.78/9,942.44 = 3,338.99/x
  3. Step 3: Cross multiply
    6,626.78x = 9,942.44 × 3,338.99
  4. Step 4: Simplify right side
    6,626.78x = 33,197,715.90
  5. Step 5: Solve for x
    x = 33,197,715.90/6,626.78
  6. Step 6: Final answer
    x = 5,009.63

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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.