Home / 13,818.37-20,727.49-3,957.64

Finding the Fourth Proportional to 13,818.37, 20,727.49 and 3,957.64

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Solution

The fourth proportional to 13,818.37, 20,727.49 and 3,957.64 is: 5,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.37 : 20,727.49 = 3,957.64 : x
  2. Step 2: Convert to fraction form
    13,818.37/20,727.49 = 3,957.64/x
  3. Step 3: Cross multiply
    13,818.37x = 20,727.49 × 3,957.64
  4. Step 4: Simplify right side
    13,818.37x = 82,032,037.42
  5. Step 5: Solve for x
    x = 82,032,037.42/13,818.37
  6. Step 6: Final answer
    x = 5,936.45

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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.