Home / 21,186.04-29,239.24-11,755.22

Finding the Fourth Proportional to 21,186.04, 29,239.24 and 11,755.22

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Solution

The fourth proportional to 21,186.04, 29,239.24 and 11,755.22 is: 16,223.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.04 : 29,239.24 = 11,755.22 : x
  2. Step 2: Convert to fraction form
    21,186.04/29,239.24 = 11,755.22/x
  3. Step 3: Cross multiply
    21,186.04x = 29,239.24 × 11,755.22
  4. Step 4: Simplify right side
    21,186.04x = 343,713,698.83
  5. Step 5: Solve for x
    x = 343,713,698.83/21,186.04
  6. Step 6: Final answer
    x = 16,223.59

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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.