Home / 14,664.78-21,997.10-3,571.43

Finding the Fourth Proportional to 14,664.78, 21,997.10 and 3,571.43

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Solution

The fourth proportional to 14,664.78, 21,997.10 and 3,571.43 is: 5,357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,664.78 : 21,997.10 = 3,571.43 : x
  2. Step 2: Convert to fraction form
    14,664.78/21,997.10 = 3,571.43/x
  3. Step 3: Cross multiply
    14,664.78x = 21,997.10 × 3,571.43
  4. Step 4: Simplify right side
    14,664.78x = 78,561,102.85
  5. Step 5: Solve for x
    x = 78,561,102.85/14,664.78
  6. Step 6: Final answer
    x = 5,357.13

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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.