Home / 8,104.44-12,140.79-7,222.86

Finding the Fourth Proportional to 8,104.44, 12,140.79 and 7,222.86

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Solution

The fourth proportional to 8,104.44, 12,140.79 and 7,222.86 is: 10,820.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.44 : 12,140.79 = 7,222.86 : x
  2. Step 2: Convert to fraction form
    8,104.44/12,140.79 = 7,222.86/x
  3. Step 3: Cross multiply
    8,104.44x = 12,140.79 × 7,222.86
  4. Step 4: Simplify right side
    8,104.44x = 87,691,226.46
  5. Step 5: Solve for x
    x = 87,691,226.46/8,104.44
  6. Step 6: Final answer
    x = 10,820.15

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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.