Home / 11,115.57-16,679.90-4,100.52

Finding the Fourth Proportional to 11,115.57, 16,679.90 and 4,100.52

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Solution

The fourth proportional to 11,115.57, 16,679.90 and 4,100.52 is: 6,153.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.57 : 16,679.90 = 4,100.52 : x
  2. Step 2: Convert to fraction form
    11,115.57/16,679.90 = 4,100.52/x
  3. Step 3: Cross multiply
    11,115.57x = 16,679.90 × 4,100.52
  4. Step 4: Simplify right side
    11,115.57x = 68,396,263.55
  5. Step 5: Solve for x
    x = 68,396,263.55/11,115.57
  6. Step 6: Final answer
    x = 6,153.19

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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.