Home / 13,997.80-20,995.79-4,137.16

Finding the Fourth Proportional to 13,997.80, 20,995.79 and 4,137.16

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Solution

The fourth proportional to 13,997.80, 20,995.79 and 4,137.16 is: 6,205.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.80 : 20,995.79 = 4,137.16 : x
  2. Step 2: Convert to fraction form
    13,997.80/20,995.79 = 4,137.16/x
  3. Step 3: Cross multiply
    13,997.80x = 20,995.79 × 4,137.16
  4. Step 4: Simplify right side
    13,997.80x = 86,862,942.56
  5. Step 5: Solve for x
    x = 86,862,942.56/13,997.80
  6. Step 6: Final answer
    x = 6,205.47

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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.