Home / 11,612.12-17,419.40-3,821.52

Finding the Fourth Proportional to 11,612.12, 17,419.40 and 3,821.52

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Solution

The fourth proportional to 11,612.12, 17,419.40 and 3,821.52 is: 5,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,612.12 : 17,419.40 = 3,821.52 : x
  2. Step 2: Convert to fraction form
    11,612.12/17,419.40 = 3,821.52/x
  3. Step 3: Cross multiply
    11,612.12x = 17,419.40 × 3,821.52
  4. Step 4: Simplify right side
    11,612.12x = 66,568,585.49
  5. Step 5: Solve for x
    x = 66,568,585.49/11,612.12
  6. Step 6: Final answer
    x = 5,732.68

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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.