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Finding the Fourth Proportional to 11,844.72, 17,775 and 4,919.22

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Solution

The fourth proportional to 11,844.72, 17,775 and 4,919.22 is: 7,382.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,844.72 : 17,775 = 4,919.22 : x
  2. Step 2: Convert to fraction form
    11,844.72/17,775 = 4,919.22/x
  3. Step 3: Cross multiply
    11,844.72x = 17,775 × 4,919.22
  4. Step 4: Simplify right side
    11,844.72x = 87,439,135.50
  5. Step 5: Solve for x
    x = 87,439,135.50/11,844.72
  6. Step 6: Final answer
    x = 7,382.12

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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.