Home / 11,990.24-16,546.56-6,686.12

Finding the Fourth Proportional to 11,990.24, 16,546.56 and 6,686.12

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Solution

The fourth proportional to 11,990.24, 16,546.56 and 6,686.12 is: 9,226.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.24 : 16,546.56 = 6,686.12 : x
  2. Step 2: Convert to fraction form
    11,990.24/16,546.56 = 6,686.12/x
  3. Step 3: Cross multiply
    11,990.24x = 16,546.56 × 6,686.12
  4. Step 4: Simplify right side
    11,990.24x = 110,632,285.75
  5. Step 5: Solve for x
    x = 110,632,285.75/11,990.24
  6. Step 6: Final answer
    x = 9,226.86

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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.