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Finding the Fourth Proportional to 6,172.20, 9,250.20 and 5,475.60

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Solution

The fourth proportional to 6,172.20, 9,250.20 and 5,475.60 is: 8,206.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,172.20 : 9,250.20 = 5,475.60 : x
  2. Step 2: Convert to fraction form
    6,172.20/9,250.20 = 5,475.60/x
  3. Step 3: Cross multiply
    6,172.20x = 9,250.20 × 5,475.60
  4. Step 4: Simplify right side
    6,172.20x = 50,650,395.12
  5. Step 5: Solve for x
    x = 50,650,395.12/6,172.20
  6. Step 6: Final answer
    x = 8,206.21

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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.