Home / 13,818.44-20,728.88-3,957.52

Finding the Fourth Proportional to 13,818.44, 20,728.88 and 3,957.52

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Solution

The fourth proportional to 13,818.44, 20,728.88 and 3,957.52 is: 5,936.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.44 : 20,728.88 = 3,957.52 : x
  2. Step 2: Convert to fraction form
    13,818.44/20,728.88 = 3,957.52/x
  3. Step 3: Cross multiply
    13,818.44x = 20,728.88 × 3,957.52
  4. Step 4: Simplify right side
    13,818.44x = 82,034,957.18
  5. Step 5: Solve for x
    x = 82,034,957.18/13,818.44
  6. Step 6: Final answer
    x = 5,936.63

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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.