Home / 8,749.10-13,121.82-3,205.10

Finding the Fourth Proportional to 8,749.10, 13,121.82 and 3,205.10

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Solution

The fourth proportional to 8,749.10, 13,121.82 and 3,205.10 is: 4,806.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.10 : 13,121.82 = 3,205.10 : x
  2. Step 2: Convert to fraction form
    8,749.10/13,121.82 = 3,205.10/x
  3. Step 3: Cross multiply
    8,749.10x = 13,121.82 × 3,205.10
  4. Step 4: Simplify right side
    8,749.10x = 42,056,745.28
  5. Step 5: Solve for x
    x = 42,056,745.28/8,749.10
  6. Step 6: Final answer
    x = 4,806.98

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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.