Home / 14,121.82-21,196.50-6,731.38

Finding the Fourth Proportional to 14,121.82, 21,196.50 and 6,731.38

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Solution

The fourth proportional to 14,121.82, 21,196.50 and 6,731.38 is: 10,103.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.82 : 21,196.50 = 6,731.38 : x
  2. Step 2: Convert to fraction form
    14,121.82/21,196.50 = 6,731.38/x
  3. Step 3: Cross multiply
    14,121.82x = 21,196.50 × 6,731.38
  4. Step 4: Simplify right side
    14,121.82x = 142,681,696.17
  5. Step 5: Solve for x
    x = 142,681,696.17/14,121.82
  6. Step 6: Final answer
    x = 10,103.63

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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.