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Finding the Fourth Proportional to 11,308.88, 16,964.03 and 3,912.37

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Solution

The fourth proportional to 11,308.88, 16,964.03 and 3,912.37 is: 5,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.88 : 16,964.03 = 3,912.37 : x
  2. Step 2: Convert to fraction form
    11,308.88/16,964.03 = 3,912.37/x
  3. Step 3: Cross multiply
    11,308.88x = 16,964.03 × 3,912.37
  4. Step 4: Simplify right side
    11,308.88x = 66,369,529.42
  5. Step 5: Solve for x
    x = 66,369,529.42/11,308.88
  6. Step 6: Final answer
    x = 5,868.80

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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.