Home / 11,105.10-16,657.79-6,205.95

Finding the Fourth Proportional to 11,105.10, 16,657.79 and 6,205.95

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Solution

The fourth proportional to 11,105.10, 16,657.79 and 6,205.95 is: 9,309.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.10 : 16,657.79 = 6,205.95 : x
  2. Step 2: Convert to fraction form
    11,105.10/16,657.79 = 6,205.95/x
  3. Step 3: Cross multiply
    11,105.10x = 16,657.79 × 6,205.95
  4. Step 4: Simplify right side
    11,105.10x = 103,377,380.82
  5. Step 5: Solve for x
    x = 103,377,380.82/11,105.10
  6. Step 6: Final answer
    x = 9,309.00

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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.