Home / 11,403.75-17,105.51-3,612.57

Finding the Fourth Proportional to 11,403.75, 17,105.51 and 3,612.57

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Solution

The fourth proportional to 11,403.75, 17,105.51 and 3,612.57 is: 5,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,403.75 : 17,105.51 = 3,612.57 : x
  2. Step 2: Convert to fraction form
    11,403.75/17,105.51 = 3,612.57/x
  3. Step 3: Cross multiply
    11,403.75x = 17,105.51 × 3,612.57
  4. Step 4: Simplify right side
    11,403.75x = 61,794,797.15
  5. Step 5: Solve for x
    x = 61,794,797.15/11,403.75
  6. Step 6: Final answer
    x = 5,418.81

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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.