Home / 7,999.22-12,002.88-5,396.69

Finding the Fourth Proportional to 7,999.22, 12,002.88 and 5,396.69

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Solution

The fourth proportional to 7,999.22, 12,002.88 and 5,396.69 is: 8,097.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.22 : 12,002.88 = 5,396.69 : x
  2. Step 2: Convert to fraction form
    7,999.22/12,002.88 = 5,396.69/x
  3. Step 3: Cross multiply
    7,999.22x = 12,002.88 × 5,396.69
  4. Step 4: Simplify right side
    7,999.22x = 64,775,778.97
  5. Step 5: Solve for x
    x = 64,775,778.97/7,999.22
  6. Step 6: Final answer
    x = 8,097.76

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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.