Home / 9,321.11-13,981.65-2,747.35

Finding the Fourth Proportional to 9,321.11, 13,981.65 and 2,747.35

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Solution

The fourth proportional to 9,321.11, 13,981.65 and 2,747.35 is: 4,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.11 : 13,981.65 = 2,747.35 : x
  2. Step 2: Convert to fraction form
    9,321.11/13,981.65 = 2,747.35/x
  3. Step 3: Cross multiply
    9,321.11x = 13,981.65 × 2,747.35
  4. Step 4: Simplify right side
    9,321.11x = 38,412,493.30
  5. Step 5: Solve for x
    x = 38,412,493.30/9,321.11
  6. Step 6: Final answer
    x = 4,121.02

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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.