Home / 7,989.03-11,016.20-5,438.44

Finding the Fourth Proportional to 7,989.03, 11,016.20 and 5,438.44

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Solution

The fourth proportional to 7,989.03, 11,016.20 and 5,438.44 is: 7,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.03 : 11,016.20 = 5,438.44 : x
  2. Step 2: Convert to fraction form
    7,989.03/11,016.20 = 5,438.44/x
  3. Step 3: Cross multiply
    7,989.03x = 11,016.20 × 5,438.44
  4. Step 4: Simplify right side
    7,989.03x = 59,910,928.78
  5. Step 5: Solve for x
    x = 59,910,928.78/7,989.03
  6. Step 6: Final answer
    x = 7,499.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.