Home / 9,135.19-13,694.56-3,287.69

Finding the Fourth Proportional to 9,135.19, 13,694.56 and 3,287.69

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Solution

The fourth proportional to 9,135.19, 13,694.56 and 3,287.69 is: 4,928.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.19 : 13,694.56 = 3,287.69 : x
  2. Step 2: Convert to fraction form
    9,135.19/13,694.56 = 3,287.69/x
  3. Step 3: Cross multiply
    9,135.19x = 13,694.56 × 3,287.69
  4. Step 4: Simplify right side
    9,135.19x = 45,023,467.97
  5. Step 5: Solve for x
    x = 45,023,467.97/9,135.19
  6. Step 6: Final answer
    x = 4,928.57

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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.