Home / 7,789.77-11,677.97-3,403.82

Finding the Fourth Proportional to 7,789.77, 11,677.97 and 3,403.82

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Solution

The fourth proportional to 7,789.77, 11,677.97 and 3,403.82 is: 5,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.77 : 11,677.97 = 3,403.82 : x
  2. Step 2: Convert to fraction form
    7,789.77/11,677.97 = 3,403.82/x
  3. Step 3: Cross multiply
    7,789.77x = 11,677.97 × 3,403.82
  4. Step 4: Simplify right side
    7,789.77x = 39,749,745.55
  5. Step 5: Solve for x
    x = 39,749,745.55/7,789.77
  6. Step 6: Final answer
    x = 5,102.81

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1.5x scale

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.