Home / 10,906.11-16,326.36-9,866.61

Finding the Fourth Proportional to 10,906.11, 16,326.36 and 9,866.61

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Solution

The fourth proportional to 10,906.11, 16,326.36 and 9,866.61 is: 14,770.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,906.11 : 16,326.36 = 9,866.61 : x
  2. Step 2: Convert to fraction form
    10,906.11/16,326.36 = 9,866.61/x
  3. Step 3: Cross multiply
    10,906.11x = 16,326.36 × 9,866.61
  4. Step 4: Simplify right side
    10,906.11x = 161,085,826.84
  5. Step 5: Solve for x
    x = 161,085,826.84/10,906.11
  6. Step 6: Final answer
    x = 14,770.24

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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.