Home / 12,161.97-18,232.17-4,771.73

Finding the Fourth Proportional to 12,161.97, 18,232.17 and 4,771.73

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Solution

The fourth proportional to 12,161.97, 18,232.17 and 4,771.73 is: 7,153.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.97 : 18,232.17 = 4,771.73 : x
  2. Step 2: Convert to fraction form
    12,161.97/18,232.17 = 4,771.73/x
  3. Step 3: Cross multiply
    12,161.97x = 18,232.17 × 4,771.73
  4. Step 4: Simplify right side
    12,161.97x = 86,998,901.39
  5. Step 5: Solve for x
    x = 86,998,901.39/12,161.97
  6. Step 6: Final answer
    x = 7,153.36

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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.