Home / 11,168.66-15,412.24-6,694.90

Finding the Fourth Proportional to 11,168.66, 15,412.24 and 6,694.90

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Solution

The fourth proportional to 11,168.66, 15,412.24 and 6,694.90 is: 9,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.66 : 15,412.24 = 6,694.90 : x
  2. Step 2: Convert to fraction form
    11,168.66/15,412.24 = 6,694.90/x
  3. Step 3: Cross multiply
    11,168.66x = 15,412.24 × 6,694.90
  4. Step 4: Simplify right side
    11,168.66x = 103,183,405.58
  5. Step 5: Solve for x
    x = 103,183,405.58/11,168.66
  6. Step 6: Final answer
    x = 9,238.66

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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.