Home / 10,540.61-15,813.19-3,521.25

Finding the Fourth Proportional to 10,540.61, 15,813.19 and 3,521.25

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Solution

The fourth proportional to 10,540.61, 15,813.19 and 3,521.25 is: 5,282.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,540.61 : 15,813.19 = 3,521.25 : x
  2. Step 2: Convert to fraction form
    10,540.61/15,813.19 = 3,521.25/x
  3. Step 3: Cross multiply
    10,540.61x = 15,813.19 × 3,521.25
  4. Step 4: Simplify right side
    10,540.61x = 55,682,195.29
  5. Step 5: Solve for x
    x = 55,682,195.29/10,540.61
  6. Step 6: Final answer
    x = 5,282.63

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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.