Home / 12,493.40-18,743.43-3,728.39

Finding the Fourth Proportional to 12,493.40, 18,743.43 and 3,728.39

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Solution

The fourth proportional to 12,493.40, 18,743.43 and 3,728.39 is: 5,593.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.40 : 18,743.43 = 3,728.39 : x
  2. Step 2: Convert to fraction form
    12,493.40/18,743.43 = 3,728.39/x
  3. Step 3: Cross multiply
    12,493.40x = 18,743.43 × 3,728.39
  4. Step 4: Simplify right side
    12,493.40x = 69,882,816.98
  5. Step 5: Solve for x
    x = 69,882,816.98/12,493.40
  6. Step 6: Final answer
    x = 5,593.58

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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.