Home / 11,887.62-17,831.43-3,122.54

Finding the Fourth Proportional to 11,887.62, 17,831.43 and 3,122.54

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Solution

The fourth proportional to 11,887.62, 17,831.43 and 3,122.54 is: 4,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.62 : 17,831.43 = 3,122.54 : x
  2. Step 2: Convert to fraction form
    11,887.62/17,831.43 = 3,122.54/x
  3. Step 3: Cross multiply
    11,887.62x = 17,831.43 × 3,122.54
  4. Step 4: Simplify right side
    11,887.62x = 55,679,264.28
  5. Step 5: Solve for x
    x = 55,679,264.28/11,887.62
  6. Step 6: Final answer
    x = 4,683.80

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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.