Home / 7,679.52-11,519.28-2,132.64

Finding the Fourth Proportional to 7,679.52, 11,519.28 and 2,132.64

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Solution

The fourth proportional to 7,679.52, 11,519.28 and 2,132.64 is: 3,198.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.52 : 11,519.28 = 2,132.64 : x
  2. Step 2: Convert to fraction form
    7,679.52/11,519.28 = 2,132.64/x
  3. Step 3: Cross multiply
    7,679.52x = 11,519.28 × 2,132.64
  4. Step 4: Simplify right side
    7,679.52x = 24,566,477.30
  5. Step 5: Solve for x
    x = 24,566,477.30/7,679.52
  6. Step 6: Final answer
    x = 3,198.96

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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.