Home / 11,906.88-16,431.28-6,600.96

Finding the Fourth Proportional to 11,906.88, 16,431.28 and 6,600.96

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Solution

The fourth proportional to 11,906.88, 16,431.28 and 6,600.96 is: 9,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.88 : 16,431.28 = 6,600.96 : x
  2. Step 2: Convert to fraction form
    11,906.88/16,431.28 = 6,600.96/x
  3. Step 3: Cross multiply
    11,906.88x = 16,431.28 × 6,600.96
  4. Step 4: Simplify right side
    11,906.88x = 108,462,222.03
  5. Step 5: Solve for x
    x = 108,462,222.03/11,906.88
  6. Step 6: Final answer
    x = 9,109.21

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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.