Home / 14,786.31-20,380.80-10,480.85

Finding the Fourth Proportional to 14,786.31, 20,380.80 and 10,480.85

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Solution

The fourth proportional to 14,786.31, 20,380.80 and 10,480.85 is: 14,446.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,786.31 : 20,380.80 = 10,480.85 : x
  2. Step 2: Convert to fraction form
    14,786.31/20,380.80 = 10,480.85/x
  3. Step 3: Cross multiply
    14,786.31x = 20,380.80 × 10,480.85
  4. Step 4: Simplify right side
    14,786.31x = 213,608,005.78
  5. Step 5: Solve for x
    x = 213,608,005.78/14,786.31
  6. Step 6: Final answer
    x = 14,446.34

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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.