Home / 14,138.73-21,175.79-6,748.38

Finding the Fourth Proportional to 14,138.73, 21,175.79 and 6,748.38

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Solution

The fourth proportional to 14,138.73, 21,175.79 and 6,748.38 is: 10,107.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.73 : 21,175.79 = 6,748.38 : x
  2. Step 2: Convert to fraction form
    14,138.73/21,175.79 = 6,748.38/x
  3. Step 3: Cross multiply
    14,138.73x = 21,175.79 × 6,748.38
  4. Step 4: Simplify right side
    14,138.73x = 142,902,164.57
  5. Step 5: Solve for x
    x = 142,902,164.57/14,138.73
  6. Step 6: Final answer
    x = 10,107.14

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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.