Home / 10,120.16-15,181.66-3,544.86

Finding the Fourth Proportional to 10,120.16, 15,181.66 and 3,544.86

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Solution

The fourth proportional to 10,120.16, 15,181.66 and 3,544.86 is: 5,317.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.16 : 15,181.66 = 3,544.86 : x
  2. Step 2: Convert to fraction form
    10,120.16/15,181.66 = 3,544.86/x
  3. Step 3: Cross multiply
    10,120.16x = 15,181.66 × 3,544.86
  4. Step 4: Simplify right side
    10,120.16x = 53,816,859.27
  5. Step 5: Solve for x
    x = 53,816,859.27/10,120.16
  6. Step 6: Final answer
    x = 5,317.79

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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.