Home / 12,540.52-18,811.08-3,775.44

Finding the Fourth Proportional to 12,540.52, 18,811.08 and 3,775.44

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Solution

The fourth proportional to 12,540.52, 18,811.08 and 3,775.44 is: 5,663.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.52 : 18,811.08 = 3,775.44 : x
  2. Step 2: Convert to fraction form
    12,540.52/18,811.08 = 3,775.44/x
  3. Step 3: Cross multiply
    12,540.52x = 18,811.08 × 3,775.44
  4. Step 4: Simplify right side
    12,540.52x = 71,020,103.88
  5. Step 5: Solve for x
    x = 71,020,103.88/12,540.52
  6. Step 6: Final answer
    x = 5,663.25

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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.