Home / 11,691.12-17,539.50-3,900.54

Finding the Fourth Proportional to 11,691.12, 17,539.50 and 3,900.54

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Solution

The fourth proportional to 11,691.12, 17,539.50 and 3,900.54 is: 5,851.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.12 : 17,539.50 = 3,900.54 : x
  2. Step 2: Convert to fraction form
    11,691.12/17,539.50 = 3,900.54/x
  3. Step 3: Cross multiply
    11,691.12x = 17,539.50 × 3,900.54
  4. Step 4: Simplify right side
    11,691.12x = 68,413,521.33
  5. Step 5: Solve for x
    x = 68,413,521.33/11,691.12
  6. Step 6: Final answer
    x = 5,851.75

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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.