Home / 12,233.30-18,351.30-3,911.90

Finding the Fourth Proportional to 12,233.30, 18,351.30 and 3,911.90

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Solution

The fourth proportional to 12,233.30, 18,351.30 and 3,911.90 is: 5,868.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,233.30 : 18,351.30 = 3,911.90 : x
  2. Step 2: Convert to fraction form
    12,233.30/18,351.30 = 3,911.90/x
  3. Step 3: Cross multiply
    12,233.30x = 18,351.30 × 3,911.90
  4. Step 4: Simplify right side
    12,233.30x = 71,788,450.47
  5. Step 5: Solve for x
    x = 71,788,450.47/12,233.30
  6. Step 6: Final answer
    x = 5,868.28

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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.