Home / 18,932.94-26,125.11-10,974.78

Finding the Fourth Proportional to 18,932.94, 26,125.11 and 10,974.78

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Solution

The fourth proportional to 18,932.94, 26,125.11 and 10,974.78 is: 15,143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.94 : 26,125.11 = 10,974.78 : x
  2. Step 2: Convert to fraction form
    18,932.94/26,125.11 = 10,974.78/x
  3. Step 3: Cross multiply
    18,932.94x = 26,125.11 × 10,974.78
  4. Step 4: Simplify right side
    18,932.94x = 286,717,334.73
  5. Step 5: Solve for x
    x = 286,717,334.73/18,932.94
  6. Step 6: Final answer
    x = 15,143.84

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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.