Home / 11,108.98-16,661.04-3,318.40

Finding the Fourth Proportional to 11,108.98, 16,661.04 and 3,318.40

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Solution

The fourth proportional to 11,108.98, 16,661.04 and 3,318.40 is: 4,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.98 : 16,661.04 = 3,318.40 : x
  2. Step 2: Convert to fraction form
    11,108.98/16,661.04 = 3,318.40/x
  3. Step 3: Cross multiply
    11,108.98x = 16,661.04 × 3,318.40
  4. Step 4: Simplify right side
    11,108.98x = 55,287,995.14
  5. Step 5: Solve for x
    x = 55,287,995.14/11,108.98
  6. Step 6: Final answer
    x = 4,976.87

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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.