Home / 9,286.20-13,929.78-2,712.90

Finding the Fourth Proportional to 9,286.20, 13,929.78 and 2,712.90

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Solution

The fourth proportional to 9,286.20, 13,929.78 and 2,712.90 is: 4,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,286.20 : 13,929.78 = 2,712.90 : x
  2. Step 2: Convert to fraction form
    9,286.20/13,929.78 = 2,712.90/x
  3. Step 3: Cross multiply
    9,286.20x = 13,929.78 × 2,712.90
  4. Step 4: Simplify right side
    9,286.20x = 37,790,100.16
  5. Step 5: Solve for x
    x = 37,790,100.16/9,286.20
  6. Step 6: Final answer
    x = 4,069.49

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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.