Home / 11,243.38-16,856.74-5,394.42

Finding the Fourth Proportional to 11,243.38, 16,856.74 and 5,394.42

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Solution

The fourth proportional to 11,243.38, 16,856.74 and 5,394.42 is: 8,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.38 : 16,856.74 = 5,394.42 : x
  2. Step 2: Convert to fraction form
    11,243.38/16,856.74 = 5,394.42/x
  3. Step 3: Cross multiply
    11,243.38x = 16,856.74 × 5,394.42
  4. Step 4: Simplify right side
    11,243.38x = 90,932,335.39
  5. Step 5: Solve for x
    x = 90,932,335.39/11,243.38
  6. Step 6: Final answer
    x = 8,087.63

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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.