Home / 7,867.70-11,799.72-3,186.41

Finding the Fourth Proportional to 7,867.70, 11,799.72 and 3,186.41

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Solution

The fourth proportional to 7,867.70, 11,799.72 and 3,186.41 is: 4,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.70 : 11,799.72 = 3,186.41 : x
  2. Step 2: Convert to fraction form
    7,867.70/11,799.72 = 3,186.41/x
  3. Step 3: Cross multiply
    7,867.70x = 11,799.72 × 3,186.41
  4. Step 4: Simplify right side
    7,867.70x = 37,598,775.30
  5. Step 5: Solve for x
    x = 37,598,775.30/7,867.70
  6. Step 6: Final answer
    x = 4,778.88

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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.