Home / 11,781.07-17,679.69-4,855.57

Finding the Fourth Proportional to 11,781.07, 17,679.69 and 4,855.57

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Solution

The fourth proportional to 11,781.07, 17,679.69 and 4,855.57 is: 7,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.07 : 17,679.69 = 4,855.57 : x
  2. Step 2: Convert to fraction form
    11,781.07/17,679.69 = 4,855.57/x
  3. Step 3: Cross multiply
    11,781.07x = 17,679.69 × 4,855.57
  4. Step 4: Simplify right side
    11,781.07x = 85,844,972.37
  5. Step 5: Solve for x
    x = 85,844,972.37/11,781.07
  6. Step 6: Final answer
    x = 7,286.69

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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.