Home / 11,889.18-17,796.41-8,169.66

Finding the Fourth Proportional to 11,889.18, 17,796.41 and 8,169.66

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Solution

The fourth proportional to 11,889.18, 17,796.41 and 8,169.66 is: 12,228.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889.18 : 17,796.41 = 8,169.66 : x
  2. Step 2: Convert to fraction form
    11,889.18/17,796.41 = 8,169.66/x
  3. Step 3: Cross multiply
    11,889.18x = 17,796.41 × 8,169.66
  4. Step 4: Simplify right side
    11,889.18x = 145,390,618.92
  5. Step 5: Solve for x
    x = 145,390,618.92/11,889.18
  6. Step 6: Final answer
    x = 12,228.82

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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.