Home / 13,818.39-20,727.48-3,957.69

Finding the Fourth Proportional to 13,818.39, 20,727.48 and 3,957.69

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Solution

The fourth proportional to 13,818.39, 20,727.48 and 3,957.69 is: 5,936.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.39 : 20,727.48 = 3,957.69 : x
  2. Step 2: Convert to fraction form
    13,818.39/20,727.48 = 3,957.69/x
  3. Step 3: Cross multiply
    13,818.39x = 20,727.48 × 3,957.69
  4. Step 4: Simplify right side
    13,818.39x = 82,032,940.32
  5. Step 5: Solve for x
    x = 82,032,940.32/13,818.39
  6. Step 6: Final answer
    x = 5,936.50

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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.