Home / 7,676.55-11,511.42-3,519.15

Finding the Fourth Proportional to 7,676.55, 11,511.42 and 3,519.15

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Solution

The fourth proportional to 7,676.55, 11,511.42 and 3,519.15 is: 5,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.55 : 11,511.42 = 3,519.15 : x
  2. Step 2: Convert to fraction form
    7,676.55/11,511.42 = 3,519.15/x
  3. Step 3: Cross multiply
    7,676.55x = 11,511.42 × 3,519.15
  4. Step 4: Simplify right side
    7,676.55x = 40,510,413.69
  5. Step 5: Solve for x
    x = 40,510,413.69/7,676.55
  6. Step 6: Final answer
    x = 5,277.16

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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.