Home / 12,553.39-18,830.22-3,788.38

Finding the Fourth Proportional to 12,553.39, 18,830.22 and 3,788.38

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Solution

The fourth proportional to 12,553.39, 18,830.22 and 3,788.38 is: 5,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.39 : 18,830.22 = 3,788.38 : x
  2. Step 2: Convert to fraction form
    12,553.39/18,830.22 = 3,788.38/x
  3. Step 3: Cross multiply
    12,553.39x = 18,830.22 × 3,788.38
  4. Step 4: Simplify right side
    12,553.39x = 71,336,028.84
  5. Step 5: Solve for x
    x = 71,336,028.84/12,553.39
  6. Step 6: Final answer
    x = 5,682.61

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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.