Home / 11,680.97-16,120.67-6,646.73

Finding the Fourth Proportional to 11,680.97, 16,120.67 and 6,646.73

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Solution

The fourth proportional to 11,680.97, 16,120.67 and 6,646.73 is: 9,173.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.97 : 16,120.67 = 6,646.73 : x
  2. Step 2: Convert to fraction form
    11,680.97/16,120.67 = 6,646.73/x
  3. Step 3: Cross multiply
    11,680.97x = 16,120.67 × 6,646.73
  4. Step 4: Simplify right side
    11,680.97x = 107,149,627.07
  5. Step 5: Solve for x
    x = 107,149,627.07/11,680.97
  6. Step 6: Final answer
    x = 9,173.01

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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.