Home / 10,286.18-15,435.44-9,449.66

Finding the Fourth Proportional to 10,286.18, 15,435.44 and 9,449.66

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Solution

The fourth proportional to 10,286.18, 15,435.44 and 9,449.66 is: 14,180.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.18 : 15,435.44 = 9,449.66 : x
  2. Step 2: Convert to fraction form
    10,286.18/15,435.44 = 9,449.66/x
  3. Step 3: Cross multiply
    10,286.18x = 15,435.44 × 9,449.66
  4. Step 4: Simplify right side
    10,286.18x = 145,859,599.90
  5. Step 5: Solve for x
    x = 145,859,599.90/10,286.18
  6. Step 6: Final answer
    x = 14,180.15

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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.