Home / 13,995.11-20,998.13-5,227.98

Finding the Fourth Proportional to 13,995.11, 20,998.13 and 5,227.98

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Solution

The fourth proportional to 13,995.11, 20,998.13 and 5,227.98 is: 7,844.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.11 : 20,998.13 = 5,227.98 : x
  2. Step 2: Convert to fraction form
    13,995.11/20,998.13 = 5,227.98/x
  3. Step 3: Cross multiply
    13,995.11x = 20,998.13 × 5,227.98
  4. Step 4: Simplify right side
    13,995.11x = 109,777,803.68
  5. Step 5: Solve for x
    x = 109,777,803.68/13,995.11
  6. Step 6: Final answer
    x = 7,844.01

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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.