Home / 11,691.28-17,537.08-3,900.10

Finding the Fourth Proportional to 11,691.28, 17,537.08 and 3,900.10

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Solution

The fourth proportional to 11,691.28, 17,537.08 and 3,900.10 is: 5,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.28 : 17,537.08 = 3,900.10 : x
  2. Step 2: Convert to fraction form
    11,691.28/17,537.08 = 3,900.10/x
  3. Step 3: Cross multiply
    11,691.28x = 17,537.08 × 3,900.10
  4. Step 4: Simplify right side
    11,691.28x = 68,396,365.71
  5. Step 5: Solve for x
    x = 68,396,365.71/11,691.28
  6. Step 6: Final answer
    x = 5,850.20

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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.