Home / 13,995.12-20,998.26-13,773.96

Finding the Fourth Proportional to 13,995.12, 20,998.26 and 13,773.96

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Solution

The fourth proportional to 13,995.12, 20,998.26 and 13,773.96 is: 20,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.12 : 20,998.26 = 13,773.96 : x
  2. Step 2: Convert to fraction form
    13,995.12/20,998.26 = 13,773.96/x
  3. Step 3: Cross multiply
    13,995.12x = 20,998.26 × 13,773.96
  4. Step 4: Simplify right side
    13,995.12x = 289,229,193.31
  5. Step 5: Solve for x
    x = 289,229,193.31/13,995.12
  6. Step 6: Final answer
    x = 20,666.43

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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.