Home / 12,553.45-18,830.90-3,789.25

Finding the Fourth Proportional to 12,553.45, 18,830.90 and 3,789.25

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Solution

The fourth proportional to 12,553.45, 18,830.90 and 3,789.25 is: 5,684.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.45 : 18,830.90 = 3,789.25 : x
  2. Step 2: Convert to fraction form
    12,553.45/18,830.90 = 3,789.25/x
  3. Step 3: Cross multiply
    12,553.45x = 18,830.90 × 3,789.25
  4. Step 4: Simplify right side
    12,553.45x = 71,354,968.88
  5. Step 5: Solve for x
    x = 71,354,968.88/12,553.45
  6. Step 6: Final answer
    x = 5,684.09

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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.