Home / 11,881.08-17,821.62-3,115.98

Finding the Fourth Proportional to 11,881.08, 17,821.62 and 3,115.98

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Solution

The fourth proportional to 11,881.08, 17,821.62 and 3,115.98 is: 4,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.08 : 17,821.62 = 3,115.98 : x
  2. Step 2: Convert to fraction form
    11,881.08/17,821.62 = 3,115.98/x
  3. Step 3: Cross multiply
    11,881.08x = 17,821.62 × 3,115.98
  4. Step 4: Simplify right side
    11,881.08x = 55,531,811.49
  5. Step 5: Solve for x
    x = 55,531,811.49/11,881.08
  6. Step 6: Final answer
    x = 4,673.97

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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.