Home / 12,916.73-19,372.53-3,554.33

Finding the Fourth Proportional to 12,916.73, 19,372.53 and 3,554.33

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Solution

The fourth proportional to 12,916.73, 19,372.53 and 3,554.33 is: 5,330.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.73 : 19,372.53 = 3,554.33 : x
  2. Step 2: Convert to fraction form
    12,916.73/19,372.53 = 3,554.33/x
  3. Step 3: Cross multiply
    12,916.73x = 19,372.53 × 3,554.33
  4. Step 4: Simplify right side
    12,916.73x = 68,856,364.55
  5. Step 5: Solve for x
    x = 68,856,364.55/12,916.73
  6. Step 6: Final answer
    x = 5,330.79

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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.