Home / 11,219.56-16,831.82-3,428.98

Finding the Fourth Proportional to 11,219.56, 16,831.82 and 3,428.98

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Solution

The fourth proportional to 11,219.56, 16,831.82 and 3,428.98 is: 5,144.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.56 : 16,831.82 = 3,428.98 : x
  2. Step 2: Convert to fraction form
    11,219.56/16,831.82 = 3,428.98/x
  3. Step 3: Cross multiply
    11,219.56x = 16,831.82 × 3,428.98
  4. Step 4: Simplify right side
    11,219.56x = 57,715,974.14
  5. Step 5: Solve for x
    x = 57,715,974.14/11,219.56
  6. Step 6: Final answer
    x = 5,144.23

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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.