Home / 11,112.12-16,659.88-6,728.52

Finding the Fourth Proportional to 11,112.12, 16,659.88 and 6,728.52

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Solution

The fourth proportional to 11,112.12, 16,659.88 and 6,728.52 is: 10,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.12 : 16,659.88 = 6,728.52 : x
  2. Step 2: Convert to fraction form
    11,112.12/16,659.88 = 6,728.52/x
  3. Step 3: Cross multiply
    11,112.12x = 16,659.88 × 6,728.52
  4. Step 4: Simplify right side
    11,112.12x = 112,096,335.78
  5. Step 5: Solve for x
    x = 112,096,335.78/11,112.12
  6. Step 6: Final answer
    x = 10,087.75

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1.5x scale

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.