Home / 21,186.43-29,237.82-11,626.73

Finding the Fourth Proportional to 21,186.43, 29,237.82 and 11,626.73

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Solution

The fourth proportional to 21,186.43, 29,237.82 and 11,626.73 is: 16,045.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.43 : 29,237.82 = 11,626.73 : x
  2. Step 2: Convert to fraction form
    21,186.43/29,237.82 = 11,626.73/x
  3. Step 3: Cross multiply
    21,186.43x = 29,237.82 × 11,626.73
  4. Step 4: Simplify right side
    21,186.43x = 339,940,312.02
  5. Step 5: Solve for x
    x = 339,940,312.02/21,186.43
  6. Step 6: Final answer
    x = 16,045.19

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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.