Home / 8,145.12-11,238.44-4,960.09

Finding the Fourth Proportional to 8,145.12, 11,238.44 and 4,960.09

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Solution

The fourth proportional to 8,145.12, 11,238.44 and 4,960.09 is: 6,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.12 : 11,238.44 = 4,960.09 : x
  2. Step 2: Convert to fraction form
    8,145.12/11,238.44 = 4,960.09/x
  3. Step 3: Cross multiply
    8,145.12x = 11,238.44 × 4,960.09
  4. Step 4: Simplify right side
    8,145.12x = 55,743,673.86
  5. Step 5: Solve for x
    x = 55,743,673.86/8,145.12
  6. Step 6: Final answer
    x = 6,843.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.