Home / 13,499.07-20,231.33-11,829.39

Finding the Fourth Proportional to 13,499.07, 20,231.33 and 11,829.39

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Solution

The fourth proportional to 13,499.07, 20,231.33 and 11,829.39 is: 17,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.07 : 20,231.33 = 11,829.39 : x
  2. Step 2: Convert to fraction form
    13,499.07/20,231.33 = 11,829.39/x
  3. Step 3: Cross multiply
    13,499.07x = 20,231.33 × 11,829.39
  4. Step 4: Simplify right side
    13,499.07x = 239,324,233.64
  5. Step 5: Solve for x
    x = 239,324,233.64/13,499.07
  6. Step 6: Final answer
    x = 17,728.94

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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.