Home / 11,538.88-17,315.68-4,143.18

Finding the Fourth Proportional to 11,538.88, 17,315.68 and 4,143.18

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Solution

The fourth proportional to 11,538.88, 17,315.68 and 4,143.18 is: 6,217.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,538.88 : 17,315.68 = 4,143.18 : x
  2. Step 2: Convert to fraction form
    11,538.88/17,315.68 = 4,143.18/x
  3. Step 3: Cross multiply
    11,538.88x = 17,315.68 × 4,143.18
  4. Step 4: Simplify right side
    11,538.88x = 71,741,979.06
  5. Step 5: Solve for x
    x = 71,741,979.06/11,538.88
  6. Step 6: Final answer
    x = 6,217.41

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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.