Home / 9,135.20-13,709.36-3,944.80

Finding the Fourth Proportional to 9,135.20, 13,709.36 and 3,944.80

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Solution

The fourth proportional to 9,135.20, 13,709.36 and 3,944.80 is: 5,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.20 : 13,709.36 = 3,944.80 : x
  2. Step 2: Convert to fraction form
    9,135.20/13,709.36 = 3,944.80/x
  3. Step 3: Cross multiply
    9,135.20x = 13,709.36 × 3,944.80
  4. Step 4: Simplify right side
    9,135.20x = 54,080,683.33
  5. Step 5: Solve for x
    x = 54,080,683.33/9,135.20
  6. Step 6: Final answer
    x = 5,920.03

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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.