Home / 13,728.07-20,592.12-3,339.82

Finding the Fourth Proportional to 13,728.07, 20,592.12 and 3,339.82

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Solution

The fourth proportional to 13,728.07, 20,592.12 and 3,339.82 is: 5,009.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.07 : 20,592.12 = 3,339.82 : x
  2. Step 2: Convert to fraction form
    13,728.07/20,592.12 = 3,339.82/x
  3. Step 3: Cross multiply
    13,728.07x = 20,592.12 × 3,339.82
  4. Step 4: Simplify right side
    13,728.07x = 68,773,974.22
  5. Step 5: Solve for x
    x = 68,773,974.22/13,728.07
  6. Step 6: Final answer
    x = 5,009.73

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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.