Home / 13,818.45-20,727.59-3,957.73

Finding the Fourth Proportional to 13,818.45, 20,727.59 and 3,957.73

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Solution

The fourth proportional to 13,818.45, 20,727.59 and 3,957.73 is: 5,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.45 : 20,727.59 = 3,957.73 : x
  2. Step 2: Convert to fraction form
    13,818.45/20,727.59 = 3,957.73/x
  3. Step 3: Cross multiply
    13,818.45x = 20,727.59 × 3,957.73
  4. Step 4: Simplify right side
    13,818.45x = 82,034,133.16
  5. Step 5: Solve for x
    x = 82,034,133.16/13,818.45
  6. Step 6: Final answer
    x = 5,936.57

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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.