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Finding the Fourth Proportional to 14,619, 20,174.22 and 7,995

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Solution

The fourth proportional to 14,619, 20,174.22 and 7,995 is: 11,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619 : 20,174.22 = 7,995 : x
  2. Step 2: Convert to fraction form
    14,619/20,174.22 = 7,995/x
  3. Step 3: Cross multiply
    14,619x = 20,174.22 × 7,995
  4. Step 4: Simplify right side
    14,619x = 161,292,888.90
  5. Step 5: Solve for x
    x = 161,292,888.90/14,619
  6. Step 6: Final answer
    x = 11,033.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.