Home / 10,115.04-15,175.32-5,735.61

Finding the Fourth Proportional to 10,115.04, 15,175.32 and 5,735.61

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Solution

The fourth proportional to 10,115.04, 15,175.32 and 5,735.61 is: 8,604.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.04 : 15,175.32 = 5,735.61 : x
  2. Step 2: Convert to fraction form
    10,115.04/15,175.32 = 5,735.61/x
  3. Step 3: Cross multiply
    10,115.04x = 15,175.32 × 5,735.61
  4. Step 4: Simplify right side
    10,115.04x = 87,039,717.15
  5. Step 5: Solve for x
    x = 87,039,717.15/10,115.04
  6. Step 6: Final answer
    x = 8,604.98

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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.