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Finding the Fourth Proportional to 11,775.66, 17,659.97 and 3,876.72

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Solution

The fourth proportional to 11,775.66, 17,659.97 and 3,876.72 is: 5,813.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.66 : 17,659.97 = 3,876.72 : x
  2. Step 2: Convert to fraction form
    11,775.66/17,659.97 = 3,876.72/x
  3. Step 3: Cross multiply
    11,775.66x = 17,659.97 × 3,876.72
  4. Step 4: Simplify right side
    11,775.66x = 68,462,687.83
  5. Step 5: Solve for x
    x = 68,462,687.83/11,775.66
  6. Step 6: Final answer
    x = 5,813.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.