Home / 13,822.78-20,731.26-4,463.66

Finding the Fourth Proportional to 13,822.78, 20,731.26 and 4,463.66

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Solution

The fourth proportional to 13,822.78, 20,731.26 and 4,463.66 is: 6,694.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.78 : 20,731.26 = 4,463.66 : x
  2. Step 2: Convert to fraction form
    13,822.78/20,731.26 = 4,463.66/x
  3. Step 3: Cross multiply
    13,822.78x = 20,731.26 × 4,463.66
  4. Step 4: Simplify right side
    13,822.78x = 92,537,296.01
  5. Step 5: Solve for x
    x = 92,537,296.01/13,822.78
  6. Step 6: Final answer
    x = 6,694.55

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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.