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Finding the Fourth Proportional to 8,756.26, 13,129.75 and 3,820.13

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Solution

The fourth proportional to 8,756.26, 13,129.75 and 3,820.13 is: 5,728.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.26 : 13,129.75 = 3,820.13 : x
  2. Step 2: Convert to fraction form
    8,756.26/13,129.75 = 3,820.13/x
  3. Step 3: Cross multiply
    8,756.26x = 13,129.75 × 3,820.13
  4. Step 4: Simplify right side
    8,756.26x = 50,157,346.44
  5. Step 5: Solve for x
    x = 50,157,346.44/8,756.26
  6. Step 6: Final answer
    x = 5,728.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.