Home / 9,135.15-13,694.52-3,207.78

Finding the Fourth Proportional to 9,135.15, 13,694.52 and 3,207.78

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Solution

The fourth proportional to 9,135.15, 13,694.52 and 3,207.78 is: 4,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.15 : 13,694.52 = 3,207.78 : x
  2. Step 2: Convert to fraction form
    9,135.15/13,694.52 = 3,207.78/x
  3. Step 3: Cross multiply
    9,135.15x = 13,694.52 × 3,207.78
  4. Step 4: Simplify right side
    9,135.15x = 43,929,007.37
  5. Step 5: Solve for x
    x = 43,929,007.37/9,135.15
  6. Step 6: Final answer
    x = 4,808.79

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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.