Home / 11,186.83-16,781.46-3,689.47

Finding the Fourth Proportional to 11,186.83, 16,781.46 and 3,689.47

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Solution

The fourth proportional to 11,186.83, 16,781.46 and 3,689.47 is: 5,534.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.83 : 16,781.46 = 3,689.47 : x
  2. Step 2: Convert to fraction form
    11,186.83/16,781.46 = 3,689.47/x
  3. Step 3: Cross multiply
    11,186.83x = 16,781.46 × 3,689.47
  4. Step 4: Simplify right side
    11,186.83x = 61,914,693.23
  5. Step 5: Solve for x
    x = 61,914,693.23/11,186.83
  6. Step 6: Final answer
    x = 5,534.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.