Home / 7,679.34-11,516.87-2,132.26

Finding the Fourth Proportional to 7,679.34, 11,516.87 and 2,132.26

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Solution

The fourth proportional to 7,679.34, 11,516.87 and 2,132.26 is: 3,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.34 : 11,516.87 = 2,132.26 : x
  2. Step 2: Convert to fraction form
    7,679.34/11,516.87 = 2,132.26/x
  3. Step 3: Cross multiply
    7,679.34x = 11,516.87 × 2,132.26
  4. Step 4: Simplify right side
    7,679.34x = 24,556,937.76
  5. Step 5: Solve for x
    x = 24,556,937.76/7,679.34
  6. Step 6: Final answer
    x = 3,197.79

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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.