Home / 9,108.09-13,659.44-3,912.75

Finding the Fourth Proportional to 9,108.09, 13,659.44 and 3,912.75

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Solution

The fourth proportional to 9,108.09, 13,659.44 and 3,912.75 is: 5,867.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.09 : 13,659.44 = 3,912.75 : x
  2. Step 2: Convert to fraction form
    9,108.09/13,659.44 = 3,912.75/x
  3. Step 3: Cross multiply
    9,108.09x = 13,659.44 × 3,912.75
  4. Step 4: Simplify right side
    9,108.09x = 53,445,954.30
  5. Step 5: Solve for x
    x = 53,445,954.30/9,108.09
  6. Step 6: Final answer
    x = 5,867.97

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1.5x scale

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.