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Finding the Fourth Proportional to 8,745.39, 13,118.79 and 2,741.06

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Solution

The fourth proportional to 8,745.39, 13,118.79 and 2,741.06 is: 4,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.39 : 13,118.79 = 2,741.06 : x
  2. Step 2: Convert to fraction form
    8,745.39/13,118.79 = 2,741.06/x
  3. Step 3: Cross multiply
    8,745.39x = 13,118.79 × 2,741.06
  4. Step 4: Simplify right side
    8,745.39x = 35,959,324.92
  5. Step 5: Solve for x
    x = 35,959,324.92/8,745.39
  6. Step 6: Final answer
    x = 4,111.80

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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.