Home / 9,105.08-12,568.89-6,122.66

Finding the Fourth Proportional to 9,105.08, 12,568.89 and 6,122.66

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Solution

The fourth proportional to 9,105.08, 12,568.89 and 6,122.66 is: 8,451.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,105.08 : 12,568.89 = 6,122.66 : x
  2. Step 2: Convert to fraction form
    9,105.08/12,568.89 = 6,122.66/x
  3. Step 3: Cross multiply
    9,105.08x = 12,568.89 × 6,122.66
  4. Step 4: Simplify right side
    9,105.08x = 76,954,977.20
  5. Step 5: Solve for x
    x = 76,954,977.20/9,105.08
  6. Step 6: Final answer
    x = 8,451.88

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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.