Home / 10,115.96-15,175.55-4,272.62

Finding the Fourth Proportional to 10,115.96, 15,175.55 and 4,272.62

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Solution

The fourth proportional to 10,115.96, 15,175.55 and 4,272.62 is: 6,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.96 : 15,175.55 = 4,272.62 : x
  2. Step 2: Convert to fraction form
    10,115.96/15,175.55 = 4,272.62/x
  3. Step 3: Cross multiply
    10,115.96x = 15,175.55 × 4,272.62
  4. Step 4: Simplify right side
    10,115.96x = 64,839,293.24
  5. Step 5: Solve for x
    x = 64,839,293.24/10,115.96
  6. Step 6: Final answer
    x = 6,409.61

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1.5x scale

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.