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Finding the Fourth Proportional to 7,172.61, 10,763.09 and 3,012.30

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Solution

The fourth proportional to 7,172.61, 10,763.09 and 3,012.30 is: 4,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172.61 : 10,763.09 = 3,012.30 : x
  2. Step 2: Convert to fraction form
    7,172.61/10,763.09 = 3,012.30/x
  3. Step 3: Cross multiply
    7,172.61x = 10,763.09 × 3,012.30
  4. Step 4: Simplify right side
    7,172.61x = 32,421,640.95
  5. Step 5: Solve for x
    x = 32,421,640.95/7,172.61
  6. Step 6: Final answer
    x = 4,520.20

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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.