Home / 11,969.07-17,961.81-4,177.89

Finding the Fourth Proportional to 11,969.07, 17,961.81 and 4,177.89

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Solution

The fourth proportional to 11,969.07, 17,961.81 and 4,177.89 is: 6,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969.07 : 17,961.81 = 4,177.89 : x
  2. Step 2: Convert to fraction form
    11,969.07/17,961.81 = 4,177.89/x
  3. Step 3: Cross multiply
    11,969.07x = 17,961.81 × 4,177.89
  4. Step 4: Simplify right side
    11,969.07x = 75,042,366.13
  5. Step 5: Solve for x
    x = 75,042,366.13/11,969.07
  6. Step 6: Final answer
    x = 6,269.69

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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.