Home / 8,519.30-11,757.19-5,162.43

Finding the Fourth Proportional to 8,519.30, 11,757.19 and 5,162.43

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Solution

The fourth proportional to 8,519.30, 11,757.19 and 5,162.43 is: 7,124.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.30 : 11,757.19 = 5,162.43 : x
  2. Step 2: Convert to fraction form
    8,519.30/11,757.19 = 5,162.43/x
  3. Step 3: Cross multiply
    8,519.30x = 11,757.19 × 5,162.43
  4. Step 4: Simplify right side
    8,519.30x = 60,695,725.75
  5. Step 5: Solve for x
    x = 60,695,725.75/8,519.30
  6. Step 6: Final answer
    x = 7,124.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.