Home / 12,105.09-18,170.36-10,727.25

Finding the Fourth Proportional to 12,105.09, 18,170.36 and 10,727.25

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Solution

The fourth proportional to 12,105.09, 18,170.36 and 10,727.25 is: 16,102.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.09 : 18,170.36 = 10,727.25 : x
  2. Step 2: Convert to fraction form
    12,105.09/18,170.36 = 10,727.25/x
  3. Step 3: Cross multiply
    12,105.09x = 18,170.36 × 10,727.25
  4. Step 4: Simplify right side
    12,105.09x = 194,917,940.67
  5. Step 5: Solve for x
    x = 194,917,940.67/12,105.09
  6. Step 6: Final answer
    x = 16,102.15

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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.