Home / 11,213.87-16,822.16-4,644.66

Finding the Fourth Proportional to 11,213.87, 16,822.16 and 4,644.66

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Solution

The fourth proportional to 11,213.87, 16,822.16 and 4,644.66 is: 6,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.87 : 16,822.16 = 4,644.66 : x
  2. Step 2: Convert to fraction form
    11,213.87/16,822.16 = 4,644.66/x
  3. Step 3: Cross multiply
    11,213.87x = 16,822.16 × 4,644.66
  4. Step 4: Simplify right side
    11,213.87x = 78,133,190.44
  5. Step 5: Solve for x
    x = 78,133,190.44/11,213.87
  6. Step 6: Final answer
    x = 6,967.55

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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.