Home / 18,912.12-26,103.24-10,958.73

Finding the Fourth Proportional to 18,912.12, 26,103.24 and 10,958.73

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Solution

The fourth proportional to 18,912.12, 26,103.24 and 10,958.73 is: 15,125.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,912.12 : 26,103.24 = 10,958.73 : x
  2. Step 2: Convert to fraction form
    18,912.12/26,103.24 = 10,958.73/x
  3. Step 3: Cross multiply
    18,912.12x = 26,103.24 × 10,958.73
  4. Step 4: Simplify right side
    18,912.12x = 286,058,359.29
  5. Step 5: Solve for x
    x = 286,058,359.29/18,912.12
  6. Step 6: Final answer
    x = 15,125.66

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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.