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Finding the Fourth Proportional to 8,519.58, 11,739.33 and 7,960.68

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Solution

The fourth proportional to 8,519.58, 11,739.33 and 7,960.68 is: 10,969.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.58 : 11,739.33 = 7,960.68 : x
  2. Step 2: Convert to fraction form
    8,519.58/11,739.33 = 7,960.68/x
  3. Step 3: Cross multiply
    8,519.58x = 11,739.33 × 7,960.68
  4. Step 4: Simplify right side
    8,519.58x = 93,453,049.54
  5. Step 5: Solve for x
    x = 93,453,049.54/8,519.58
  6. Step 6: Final answer
    x = 10,969.21

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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.