Home / 13,917.84-20,879.79-4,057.98

Finding the Fourth Proportional to 13,917.84, 20,879.79 and 4,057.98

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Solution

The fourth proportional to 13,917.84, 20,879.79 and 4,057.98 is: 6,087.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.84 : 20,879.79 = 4,057.98 : x
  2. Step 2: Convert to fraction form
    13,917.84/20,879.79 = 4,057.98/x
  3. Step 3: Cross multiply
    13,917.84x = 20,879.79 × 4,057.98
  4. Step 4: Simplify right side
    13,917.84x = 84,729,770.22
  5. Step 5: Solve for x
    x = 84,729,770.22/13,917.84
  6. Step 6: Final answer
    x = 6,087.85

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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.