Home / 7,678.73-11,516.81-2,132.64

Finding the Fourth Proportional to 7,678.73, 11,516.81 and 2,132.64

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Solution

The fourth proportional to 7,678.73, 11,516.81 and 2,132.64 is: 3,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.73 : 11,516.81 = 2,132.64 : x
  2. Step 2: Convert to fraction form
    7,678.73/11,516.81 = 2,132.64/x
  3. Step 3: Cross multiply
    7,678.73x = 11,516.81 × 2,132.64
  4. Step 4: Simplify right side
    7,678.73x = 24,561,209.68
  5. Step 5: Solve for x
    x = 24,561,209.68/7,678.73
  6. Step 6: Final answer
    x = 3,198.60

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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.