Home / 13,972.70-20,963.57-4,112.03

Finding the Fourth Proportional to 13,972.70, 20,963.57 and 4,112.03

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Solution

The fourth proportional to 13,972.70, 20,963.57 and 4,112.03 is: 6,169.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.70 : 20,963.57 = 4,112.03 : x
  2. Step 2: Convert to fraction form
    13,972.70/20,963.57 = 4,112.03/x
  3. Step 3: Cross multiply
    13,972.70x = 20,963.57 × 4,112.03
  4. Step 4: Simplify right side
    13,972.70x = 86,202,828.75
  5. Step 5: Solve for x
    x = 86,202,828.75/13,972.70
  6. Step 6: Final answer
    x = 6,169.38

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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.