Home / 12,812.92-19,217.95-3,453.87

Finding the Fourth Proportional to 12,812.92, 19,217.95 and 3,453.87

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Solution

The fourth proportional to 12,812.92, 19,217.95 and 3,453.87 is: 5,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.92 : 19,217.95 = 3,453.87 : x
  2. Step 2: Convert to fraction form
    12,812.92/19,217.95 = 3,453.87/x
  3. Step 3: Cross multiply
    12,812.92x = 19,217.95 × 3,453.87
  4. Step 4: Simplify right side
    12,812.92x = 66,376,300.97
  5. Step 5: Solve for x
    x = 66,376,300.97/12,812.92
  6. Step 6: Final answer
    x = 5,180.42

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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.