Home / 7,615.75-11,425.31-3,236.95

Finding the Fourth Proportional to 7,615.75, 11,425.31 and 3,236.95

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Solution

The fourth proportional to 7,615.75, 11,425.31 and 3,236.95 is: 4,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.75 : 11,425.31 = 3,236.95 : x
  2. Step 2: Convert to fraction form
    7,615.75/11,425.31 = 3,236.95/x
  3. Step 3: Cross multiply
    7,615.75x = 11,425.31 × 3,236.95
  4. Step 4: Simplify right side
    7,615.75x = 36,983,157.20
  5. Step 5: Solve for x
    x = 36,983,157.20/7,615.75
  6. Step 6: Final answer
    x = 4,856.14

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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.