Home / 13,892.37-20,891.48-11,087.61

Finding the Fourth Proportional to 13,892.37, 20,891.48 and 11,087.61

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Solution

The fourth proportional to 13,892.37, 20,891.48 and 11,087.61 is: 16,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.37 : 20,891.48 = 11,087.61 : x
  2. Step 2: Convert to fraction form
    13,892.37/20,891.48 = 11,087.61/x
  3. Step 3: Cross multiply
    13,892.37x = 20,891.48 × 11,087.61
  4. Step 4: Simplify right side
    13,892.37x = 231,636,527.12
  5. Step 5: Solve for x
    x = 231,636,527.12/13,892.37
  6. Step 6: Final answer
    x = 16,673.65

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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.