Home / 14,791.20-20,380.32-11,434.56

Finding the Fourth Proportional to 14,791.20, 20,380.32 and 11,434.56

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Solution

The fourth proportional to 14,791.20, 20,380.32 and 11,434.56 is: 15,755.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791.20 : 20,380.32 = 11,434.56 : x
  2. Step 2: Convert to fraction form
    14,791.20/20,380.32 = 11,434.56/x
  3. Step 3: Cross multiply
    14,791.20x = 20,380.32 × 11,434.56
  4. Step 4: Simplify right side
    14,791.20x = 233,039,991.86
  5. Step 5: Solve for x
    x = 233,039,991.86/14,791.20
  6. Step 6: Final answer
    x = 15,755.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.