Home / 13,193.45-19,787.07-3,831

Finding the Fourth Proportional to 13,193.45, 19,787.07 and 3,831

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Solution

The fourth proportional to 13,193.45, 19,787.07 and 3,831 is: 5,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.45 : 19,787.07 = 3,831 : x
  2. Step 2: Convert to fraction form
    13,193.45/19,787.07 = 3,831/x
  3. Step 3: Cross multiply
    13,193.45x = 19,787.07 × 3,831
  4. Step 4: Simplify right side
    13,193.45x = 75,804,265.17
  5. Step 5: Solve for x
    x = 75,804,265.17/13,193.45
  6. Step 6: Final answer
    x = 5,745.60

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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.