Home / 11,656.88-16,086.60-6,351.72

Finding the Fourth Proportional to 11,656.88, 16,086.60 and 6,351.72

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Solution

The fourth proportional to 11,656.88, 16,086.60 and 6,351.72 is: 8,765.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656.88 : 16,086.60 = 6,351.72 : x
  2. Step 2: Convert to fraction form
    11,656.88/16,086.60 = 6,351.72/x
  3. Step 3: Cross multiply
    11,656.88x = 16,086.60 × 6,351.72
  4. Step 4: Simplify right side
    11,656.88x = 102,177,578.95
  5. Step 5: Solve for x
    x = 102,177,578.95/11,656.88
  6. Step 6: Final answer
    x = 8,765.43

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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.