Home / 10,268.31-15,393.24-3,689.90

Finding the Fourth Proportional to 10,268.31, 15,393.24 and 3,689.90

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Solution

The fourth proportional to 10,268.31, 15,393.24 and 3,689.90 is: 5,531.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,268.31 : 15,393.24 = 3,689.90 : x
  2. Step 2: Convert to fraction form
    10,268.31/15,393.24 = 3,689.90/x
  3. Step 3: Cross multiply
    10,268.31x = 15,393.24 × 3,689.90
  4. Step 4: Simplify right side
    10,268.31x = 56,799,497.03
  5. Step 5: Solve for x
    x = 56,799,497.03/10,268.31
  6. Step 6: Final answer
    x = 5,531.53

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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.