Home / 9,221.96-13,821.80-3,880.41

Finding the Fourth Proportional to 9,221.96, 13,821.80 and 3,880.41

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Solution

The fourth proportional to 9,221.96, 13,821.80 and 3,880.41 is: 5,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.96 : 13,821.80 = 3,880.41 : x
  2. Step 2: Convert to fraction form
    9,221.96/13,821.80 = 3,880.41/x
  3. Step 3: Cross multiply
    9,221.96x = 13,821.80 × 3,880.41
  4. Step 4: Simplify right side
    9,221.96x = 53,634,231.54
  5. Step 5: Solve for x
    x = 53,634,231.54/9,221.96
  6. Step 6: Final answer
    x = 5,815.93

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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.