Home / 8,936.90-13,396.64-4,255.66

Finding the Fourth Proportional to 8,936.90, 13,396.64 and 4,255.66

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Solution

The fourth proportional to 8,936.90, 13,396.64 and 4,255.66 is: 6,379.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.90 : 13,396.64 = 4,255.66 : x
  2. Step 2: Convert to fraction form
    8,936.90/13,396.64 = 4,255.66/x
  3. Step 3: Cross multiply
    8,936.90x = 13,396.64 × 4,255.66
  4. Step 4: Simplify right side
    8,936.90x = 57,011,456.72
  5. Step 5: Solve for x
    x = 57,011,456.72/8,936.90
  6. Step 6: Final answer
    x = 6,379.33

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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.