Home / 13,712.88-20,569.43-3,324.63

Finding the Fourth Proportional to 13,712.88, 20,569.43 and 3,324.63

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Solution

The fourth proportional to 13,712.88, 20,569.43 and 3,324.63 is: 4,986.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.88 : 20,569.43 = 3,324.63 : x
  2. Step 2: Convert to fraction form
    13,712.88/20,569.43 = 3,324.63/x
  3. Step 3: Cross multiply
    13,712.88x = 20,569.43 × 3,324.63
  4. Step 4: Simplify right side
    13,712.88x = 68,385,744.06
  5. Step 5: Solve for x
    x = 68,385,744.06/13,712.88
  6. Step 6: Final answer
    x = 4,986.97

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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.