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Finding the Fourth Proportional to 8,745.11, 13,118.57 and 3,747.98

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Solution

The fourth proportional to 8,745.11, 13,118.57 and 3,747.98 is: 5,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.11 : 13,118.57 = 3,747.98 : x
  2. Step 2: Convert to fraction form
    8,745.11/13,118.57 = 3,747.98/x
  3. Step 3: Cross multiply
    8,745.11x = 13,118.57 × 3,747.98
  4. Step 4: Simplify right side
    8,745.11x = 49,168,187.18
  5. Step 5: Solve for x
    x = 49,168,187.18/8,745.11
  6. Step 6: Final answer
    x = 5,622.36

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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.