Home / 13,963.73-20,939.01-5,072.78

Finding the Fourth Proportional to 13,963.73, 20,939.01 and 5,072.78

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Solution

The fourth proportional to 13,963.73, 20,939.01 and 5,072.78 is: 7,606.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,963.73 : 20,939.01 = 5,072.78 : x
  2. Step 2: Convert to fraction form
    13,963.73/20,939.01 = 5,072.78/x
  3. Step 3: Cross multiply
    13,963.73x = 20,939.01 × 5,072.78
  4. Step 4: Simplify right side
    13,963.73x = 106,219,063.73
  5. Step 5: Solve for x
    x = 106,219,063.73/13,963.73
  6. Step 6: Final answer
    x = 7,606.79

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1.5x scale

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.