Home / 11,218.97-16,831.75-3,321.69

Finding the Fourth Proportional to 11,218.97, 16,831.75 and 3,321.69

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Solution

The fourth proportional to 11,218.97, 16,831.75 and 3,321.69 is: 4,983.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.97 : 16,831.75 = 3,321.69 : x
  2. Step 2: Convert to fraction form
    11,218.97/16,831.75 = 3,321.69/x
  3. Step 3: Cross multiply
    11,218.97x = 16,831.75 × 3,321.69
  4. Step 4: Simplify right side
    11,218.97x = 55,909,839.13
  5. Step 5: Solve for x
    x = 55,909,839.13/11,218.97
  6. Step 6: Final answer
    x = 4,983.51

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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.