Home / 13,583.80-20,375.70-9,436.60

Finding the Fourth Proportional to 13,583.80, 20,375.70 and 9,436.60

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Solution

The fourth proportional to 13,583.80, 20,375.70 and 9,436.60 is: 14,154.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.80 : 20,375.70 = 9,436.60 : x
  2. Step 2: Convert to fraction form
    13,583.80/20,375.70 = 9,436.60/x
  3. Step 3: Cross multiply
    13,583.80x = 20,375.70 × 9,436.60
  4. Step 4: Simplify right side
    13,583.80x = 192,277,330.62
  5. Step 5: Solve for x
    x = 192,277,330.62/13,583.80
  6. Step 6: Final answer
    x = 14,154.90

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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.