Home / 13,829.45-20,818.92-12,604.73

Finding the Fourth Proportional to 13,829.45, 20,818.92 and 12,604.73

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Solution

The fourth proportional to 13,829.45, 20,818.92 and 12,604.73 is: 18,975.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.45 : 20,818.92 = 12,604.73 : x
  2. Step 2: Convert to fraction form
    13,829.45/20,818.92 = 12,604.73/x
  3. Step 3: Cross multiply
    13,829.45x = 20,818.92 × 12,604.73
  4. Step 4: Simplify right side
    13,829.45x = 262,416,833.98
  5. Step 5: Solve for x
    x = 262,416,833.98/13,829.45
  6. Step 6: Final answer
    x = 18,975.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.