Home / 21,186.56-29,237.16-11,755.16

Finding the Fourth Proportional to 21,186.56, 29,237.16 and 11,755.16

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Solution

The fourth proportional to 21,186.56, 29,237.16 and 11,755.16 is: 16,221.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.56 : 29,237.16 = 11,755.16 : x
  2. Step 2: Convert to fraction form
    21,186.56/29,237.16 = 11,755.16/x
  3. Step 3: Cross multiply
    21,186.56x = 29,237.16 × 11,755.16
  4. Step 4: Simplify right side
    21,186.56x = 343,687,493.75
  5. Step 5: Solve for x
    x = 343,687,493.75/21,186.56
  6. Step 6: Final answer
    x = 16,221.96

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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.