Home / 13,975.20-20,944.80-6,177.60

Finding the Fourth Proportional to 13,975.20, 20,944.80 and 6,177.60

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Solution

The fourth proportional to 13,975.20, 20,944.80 and 6,177.60 is: 9,258.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.20 : 20,944.80 = 6,177.60 : x
  2. Step 2: Convert to fraction form
    13,975.20/20,944.80 = 6,177.60/x
  3. Step 3: Cross multiply
    13,975.20x = 20,944.80 × 6,177.60
  4. Step 4: Simplify right side
    13,975.20x = 129,388,596.48
  5. Step 5: Solve for x
    x = 129,388,596.48/13,975.20
  6. Step 6: Final answer
    x = 9,258.44

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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.