Home / 11,219.06-16,831.06-3,428.48

Finding the Fourth Proportional to 11,219.06, 16,831.06 and 3,428.48

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Solution

The fourth proportional to 11,219.06, 16,831.06 and 3,428.48 is: 5,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.06 : 16,831.06 = 3,428.48 : x
  2. Step 2: Convert to fraction form
    11,219.06/16,831.06 = 3,428.48/x
  3. Step 3: Cross multiply
    11,219.06x = 16,831.06 × 3,428.48
  4. Step 4: Simplify right side
    11,219.06x = 57,704,952.59
  5. Step 5: Solve for x
    x = 57,704,952.59/11,219.06
  6. Step 6: Final answer
    x = 5,143.47

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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.