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Finding the Fourth Proportional to 11,489.88, 17,249.41 and 9,769.44

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Solution

The fourth proportional to 11,489.88, 17,249.41 and 9,769.44 is: 14,666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,489.88 : 17,249.41 = 9,769.44 : x
  2. Step 2: Convert to fraction form
    11,489.88/17,249.41 = 9,769.44/x
  3. Step 3: Cross multiply
    11,489.88x = 17,249.41 × 9,769.44
  4. Step 4: Simplify right side
    11,489.88x = 168,517,094.73
  5. Step 5: Solve for x
    x = 168,517,094.73/11,489.88
  6. Step 6: Final answer
    x = 14,666.56

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1.5x scale

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.