Home / 13,503.33-20,231.75-12,133.73

Finding the Fourth Proportional to 13,503.33, 20,231.75 and 12,133.73

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Solution

The fourth proportional to 13,503.33, 20,231.75 and 12,133.73 is: 18,179.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.33 : 20,231.75 = 12,133.73 : x
  2. Step 2: Convert to fraction form
    13,503.33/20,231.75 = 12,133.73/x
  3. Step 3: Cross multiply
    13,503.33x = 20,231.75 × 12,133.73
  4. Step 4: Simplify right side
    13,503.33x = 245,486,672.84
  5. Step 5: Solve for x
    x = 245,486,672.84/13,503.33
  6. Step 6: Final answer
    x = 18,179.71

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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.