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Finding the Fourth Proportional to 8,190.17, 12,287.10 and 2,996

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Solution

The fourth proportional to 8,190.17, 12,287.10 and 2,996 is: 4,494.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.17 : 12,287.10 = 2,996 : x
  2. Step 2: Convert to fraction form
    8,190.17/12,287.10 = 2,996/x
  3. Step 3: Cross multiply
    8,190.17x = 12,287.10 × 2,996
  4. Step 4: Simplify right side
    8,190.17x = 36,812,151.60
  5. Step 5: Solve for x
    x = 36,812,151.60/8,190.17
  6. Step 6: Final answer
    x = 4,494.67

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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.