Home / 13,896.68-20,849.82-8,696.36

Finding the Fourth Proportional to 13,896.68, 20,849.82 and 8,696.36

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Solution

The fourth proportional to 13,896.68, 20,849.82 and 8,696.36 is: 13,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.68 : 20,849.82 = 8,696.36 : x
  2. Step 2: Convert to fraction form
    13,896.68/20,849.82 = 8,696.36/x
  3. Step 3: Cross multiply
    13,896.68x = 20,849.82 × 8,696.36
  4. Step 4: Simplify right side
    13,896.68x = 181,317,540.66
  5. Step 5: Solve for x
    x = 181,317,540.66/13,896.68
  6. Step 6: Final answer
    x = 13,047.54

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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.