Home / 8,105.54-11,185.64-4,379.54

Finding the Fourth Proportional to 8,105.54, 11,185.64 and 4,379.54

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Solution

The fourth proportional to 8,105.54, 11,185.64 and 4,379.54 is: 6,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.54 : 11,185.64 = 4,379.54 : x
  2. Step 2: Convert to fraction form
    8,105.54/11,185.64 = 4,379.54/x
  3. Step 3: Cross multiply
    8,105.54x = 11,185.64 × 4,379.54
  4. Step 4: Simplify right side
    8,105.54x = 48,987,879.98
  5. Step 5: Solve for x
    x = 48,987,879.98/8,105.54
  6. Step 6: Final answer
    x = 6,043.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.