Home / 13,728.09-20,583.27-9,033.90

Finding the Fourth Proportional to 13,728.09, 20,583.27 and 9,033.90

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Solution

The fourth proportional to 13,728.09, 20,583.27 and 9,033.90 is: 13,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.09 : 20,583.27 = 9,033.90 : x
  2. Step 2: Convert to fraction form
    13,728.09/20,583.27 = 9,033.90/x
  3. Step 3: Cross multiply
    13,728.09x = 20,583.27 × 9,033.90
  4. Step 4: Simplify right side
    13,728.09x = 185,947,202.85
  5. Step 5: Solve for x
    x = 185,947,202.85/13,728.09
  6. Step 6: Final answer
    x = 13,545.02

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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.