Home / 13,806.88-20,717.64-10,540.96

Finding the Fourth Proportional to 13,806.88, 20,717.64 and 10,540.96

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Solution

The fourth proportional to 13,806.88, 20,717.64 and 10,540.96 is: 15,817.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.88 : 20,717.64 = 10,540.96 : x
  2. Step 2: Convert to fraction form
    13,806.88/20,717.64 = 10,540.96/x
  3. Step 3: Cross multiply
    13,806.88x = 20,717.64 × 10,540.96
  4. Step 4: Simplify right side
    13,806.88x = 218,383,814.53
  5. Step 5: Solve for x
    x = 218,383,814.53/13,806.88
  6. Step 6: Final answer
    x = 15,817.03

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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.