Home / 12,795.38-19,196-3,911.54

Finding the Fourth Proportional to 12,795.38, 19,196 and 3,911.54

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Solution

The fourth proportional to 12,795.38, 19,196 and 3,911.54 is: 5,868.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.38 : 19,196 = 3,911.54 : x
  2. Step 2: Convert to fraction form
    12,795.38/19,196 = 3,911.54/x
  3. Step 3: Cross multiply
    12,795.38x = 19,196 × 3,911.54
  4. Step 4: Simplify right side
    12,795.38x = 75,085,921.84
  5. Step 5: Solve for x
    x = 75,085,921.84/12,795.38
  6. Step 6: Final answer
    x = 5,868.21

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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.