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Finding the Fourth Proportional to 7,806.96, 11,710.44 and 5,729.04

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Solution

The fourth proportional to 7,806.96, 11,710.44 and 5,729.04 is: 8,593.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806.96 : 11,710.44 = 5,729.04 : x
  2. Step 2: Convert to fraction form
    7,806.96/11,710.44 = 5,729.04/x
  3. Step 3: Cross multiply
    7,806.96x = 11,710.44 × 5,729.04
  4. Step 4: Simplify right side
    7,806.96x = 67,089,579.18
  5. Step 5: Solve for x
    x = 67,089,579.18/7,806.96
  6. Step 6: Final answer
    x = 8,593.56

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Similar ratio
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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.