Home / 13,936.50-20,906.70-4,076.49

Finding the Fourth Proportional to 13,936.50, 20,906.70 and 4,076.49

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Solution

The fourth proportional to 13,936.50, 20,906.70 and 4,076.49 is: 6,115.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,936.50 : 20,906.70 = 4,076.49 : x
  2. Step 2: Convert to fraction form
    13,936.50/20,906.70 = 4,076.49/x
  3. Step 3: Cross multiply
    13,936.50x = 20,906.70 × 4,076.49
  4. Step 4: Simplify right side
    13,936.50x = 85,225,953.48
  5. Step 5: Solve for x
    x = 85,225,953.48/13,936.50
  6. Step 6: Final answer
    x = 6,115.31

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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.