Home / 13,111.54-19,568.25-12,222.73

Finding the Fourth Proportional to 13,111.54, 19,568.25 and 12,222.73

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Solution

The fourth proportional to 13,111.54, 19,568.25 and 12,222.73 is: 18,241.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111.54 : 19,568.25 = 12,222.73 : x
  2. Step 2: Convert to fraction form
    13,111.54/19,568.25 = 12,222.73/x
  3. Step 3: Cross multiply
    13,111.54x = 19,568.25 × 12,222.73
  4. Step 4: Simplify right side
    13,111.54x = 239,177,460.78
  5. Step 5: Solve for x
    x = 239,177,460.78/13,111.54
  6. Step 6: Final answer
    x = 18,241.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.