Home / 13,976.36-20,962.14-4,115.56

Finding the Fourth Proportional to 13,976.36, 20,962.14 and 4,115.56

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Solution

The fourth proportional to 13,976.36, 20,962.14 and 4,115.56 is: 6,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.36 : 20,962.14 = 4,115.56 : x
  2. Step 2: Convert to fraction form
    13,976.36/20,962.14 = 4,115.56/x
  3. Step 3: Cross multiply
    13,976.36x = 20,962.14 × 4,115.56
  4. Step 4: Simplify right side
    13,976.36x = 86,270,944.90
  5. Step 5: Solve for x
    x = 86,270,944.90/13,976.36
  6. Step 6: Final answer
    x = 6,172.63

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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.