Home / 7,765.91-11,651.14-2,500.81

Finding the Fourth Proportional to 7,765.91, 11,651.14 and 2,500.81

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Solution

The fourth proportional to 7,765.91, 11,651.14 and 2,500.81 is: 3,751.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.91 : 11,651.14 = 2,500.81 : x
  2. Step 2: Convert to fraction form
    7,765.91/11,651.14 = 2,500.81/x
  3. Step 3: Cross multiply
    7,765.91x = 11,651.14 × 2,500.81
  4. Step 4: Simplify right side
    7,765.91x = 29,137,261.42
  5. Step 5: Solve for x
    x = 29,137,261.42/7,765.91
  6. Step 6: Final answer
    x = 3,751.94

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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.