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Finding the Fourth Proportional to 8,820, 13,230 and 3,956

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Solution

The fourth proportional to 8,820, 13,230 and 3,956 is: 5,934

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820 : 13,230 = 3,956 : x
  2. Step 2: Convert to fraction form
    8,820/13,230 = 3,956/x
  3. Step 3: Cross multiply
    8,820x = 13,230 × 3,956
  4. Step 4: Simplify right side
    8,820x = 52,337,880
  5. Step 5: Solve for x
    x = 52,337,880/8,820
  6. Step 6: Final answer
    x = 5,934

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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.