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Finding the Fourth Proportional to 7,777.82, 11,659.14 and 3,096.43

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Solution

The fourth proportional to 7,777.82, 11,659.14 and 3,096.43 is: 4,641.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.82 : 11,659.14 = 3,096.43 : x
  2. Step 2: Convert to fraction form
    7,777.82/11,659.14 = 3,096.43/x
  3. Step 3: Cross multiply
    7,777.82x = 11,659.14 × 3,096.43
  4. Step 4: Simplify right side
    7,777.82x = 36,101,681.72
  5. Step 5: Solve for x
    x = 36,101,681.72/7,777.82
  6. Step 6: Final answer
    x = 4,641.62

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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.