Home / 12,915.73-19,371.03-3,553.33

Finding the Fourth Proportional to 12,915.73, 19,371.03 and 3,553.33

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Solution

The fourth proportional to 12,915.73, 19,371.03 and 3,553.33 is: 5,329.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915.73 : 19,371.03 = 3,553.33 : x
  2. Step 2: Convert to fraction form
    12,915.73/19,371.03 = 3,553.33/x
  3. Step 3: Cross multiply
    12,915.73x = 19,371.03 × 3,553.33
  4. Step 4: Simplify right side
    12,915.73x = 68,831,662.03
  5. Step 5: Solve for x
    x = 68,831,662.03/12,915.73
  6. Step 6: Final answer
    x = 5,329.29

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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.