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Finding the Fourth Proportional to 7,861.44, 11,797.63 and 5,081.22

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Solution

The fourth proportional to 7,861.44, 11,797.63 and 5,081.22 is: 7,625.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.44 : 11,797.63 = 5,081.22 : x
  2. Step 2: Convert to fraction form
    7,861.44/11,797.63 = 5,081.22/x
  3. Step 3: Cross multiply
    7,861.44x = 11,797.63 × 5,081.22
  4. Step 4: Simplify right side
    7,861.44x = 59,946,353.51
  5. Step 5: Solve for x
    x = 59,946,353.51/7,861.44
  6. Step 6: Final answer
    x = 7,625.37

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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.