Home / 11,112.45-16,669.68-3,214.85

Finding the Fourth Proportional to 11,112.45, 16,669.68 and 3,214.85

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Solution

The fourth proportional to 11,112.45, 16,669.68 and 3,214.85 is: 4,822.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.45 : 16,669.68 = 3,214.85 : x
  2. Step 2: Convert to fraction form
    11,112.45/16,669.68 = 3,214.85/x
  3. Step 3: Cross multiply
    11,112.45x = 16,669.68 × 3,214.85
  4. Step 4: Simplify right side
    11,112.45x = 53,590,487.86
  5. Step 5: Solve for x
    x = 53,590,487.86/11,112.45
  6. Step 6: Final answer
    x = 4,822.56

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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.