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Finding the Fourth Proportional to 12,863.73, 19,302.99 and 6,940.60

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Solution

The fourth proportional to 12,863.73, 19,302.99 and 6,940.60 is: 10,414.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.73 : 19,302.99 = 6,940.60 : x
  2. Step 2: Convert to fraction form
    12,863.73/19,302.99 = 6,940.60/x
  3. Step 3: Cross multiply
    12,863.73x = 19,302.99 × 6,940.60
  4. Step 4: Simplify right side
    12,863.73x = 133,974,405.73
  5. Step 5: Solve for x
    x = 133,974,405.73/12,863.73
  6. Step 6: Final answer
    x = 10,414.90

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1.5x scale

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.