Home / 11,109.12-16,664.04-3,318.36

Finding the Fourth Proportional to 11,109.12, 16,664.04 and 3,318.36

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Solution

The fourth proportional to 11,109.12, 16,664.04 and 3,318.36 is: 4,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.12 : 16,664.04 = 3,318.36 : x
  2. Step 2: Convert to fraction form
    11,109.12/16,664.04 = 3,318.36/x
  3. Step 3: Cross multiply
    11,109.12x = 16,664.04 × 3,318.36
  4. Step 4: Simplify right side
    11,109.12x = 55,297,283.77
  5. Step 5: Solve for x
    x = 55,297,283.77/11,109.12
  6. Step 6: Final answer
    x = 4,977.65

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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.