Home / 11,220.69-16,831.02-3,429.51

Finding the Fourth Proportional to 11,220.69, 16,831.02 and 3,429.51

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Solution

The fourth proportional to 11,220.69, 16,831.02 and 3,429.51 is: 5,144.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.69 : 16,831.02 = 3,429.51 : x
  2. Step 2: Convert to fraction form
    11,220.69/16,831.02 = 3,429.51/x
  3. Step 3: Cross multiply
    11,220.69x = 16,831.02 × 3,429.51
  4. Step 4: Simplify right side
    11,220.69x = 57,722,101.14
  5. Step 5: Solve for x
    x = 57,722,101.14/11,220.69
  6. Step 6: Final answer
    x = 5,144.25

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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.