Home / 13,531.86-18,632.43-11,843.82

Finding the Fourth Proportional to 13,531.86, 18,632.43 and 11,843.82

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Solution

The fourth proportional to 13,531.86, 18,632.43 and 11,843.82 is: 16,308.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.86 : 18,632.43 = 11,843.82 : x
  2. Step 2: Convert to fraction form
    13,531.86/18,632.43 = 11,843.82/x
  3. Step 3: Cross multiply
    13,531.86x = 18,632.43 × 11,843.82
  4. Step 4: Simplify right side
    13,531.86x = 220,679,147.08
  5. Step 5: Solve for x
    x = 220,679,147.08/13,531.86
  6. Step 6: Final answer
    x = 16,308.12

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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.