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Finding the Fourth Proportional to 7,775.07, 11,654.56 and 3,611.69

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Solution

The fourth proportional to 7,775.07, 11,654.56 and 3,611.69 is: 5,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.07 : 11,654.56 = 3,611.69 : x
  2. Step 2: Convert to fraction form
    7,775.07/11,654.56 = 3,611.69/x
  3. Step 3: Cross multiply
    7,775.07x = 11,654.56 × 3,611.69
  4. Step 4: Simplify right side
    7,775.07x = 42,092,647.75
  5. Step 5: Solve for x
    x = 42,092,647.75/7,775.07
  6. Step 6: Final answer
    x = 5,413.80

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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.