Home / 14,110.75-21,163.39-13,408.28

Finding the Fourth Proportional to 14,110.75, 21,163.39 and 13,408.28

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Solution

The fourth proportional to 14,110.75, 21,163.39 and 13,408.28 is: 20,109.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,110.75 : 21,163.39 = 13,408.28 : x
  2. Step 2: Convert to fraction form
    14,110.75/21,163.39 = 13,408.28/x
  3. Step 3: Cross multiply
    14,110.75x = 21,163.39 × 13,408.28
  4. Step 4: Simplify right side
    14,110.75x = 283,764,519.53
  5. Step 5: Solve for x
    x = 283,764,519.53/14,110.75
  6. Step 6: Final answer
    x = 20,109.81

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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.