Home / 21,169.26-29,213.73-11,737.89

Finding the Fourth Proportional to 21,169.26, 29,213.73 and 11,737.89

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Solution

The fourth proportional to 21,169.26, 29,213.73 and 11,737.89 is: 16,198.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.26 : 29,213.73 = 11,737.89 : x
  2. Step 2: Convert to fraction form
    21,169.26/29,213.73 = 11,737.89/x
  3. Step 3: Cross multiply
    21,169.26x = 29,213.73 × 11,737.89
  4. Step 4: Simplify right side
    21,169.26x = 342,907,549.23
  5. Step 5: Solve for x
    x = 342,907,549.23/21,169.26
  6. Step 6: Final answer
    x = 16,198.37

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1.5x scale

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.