Home / 6,918.13-10,380.21-3,630.43

Finding the Fourth Proportional to 6,918.13, 10,380.21 and 3,630.43

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Solution

The fourth proportional to 6,918.13, 10,380.21 and 3,630.43 is: 5,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.13 : 10,380.21 = 3,630.43 : x
  2. Step 2: Convert to fraction form
    6,918.13/10,380.21 = 3,630.43/x
  3. Step 3: Cross multiply
    6,918.13x = 10,380.21 × 3,630.43
  4. Step 4: Simplify right side
    6,918.13x = 37,684,625.79
  5. Step 5: Solve for x
    x = 37,684,625.79/6,918.13
  6. Step 6: Final answer
    x = 5,447.23

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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.