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Finding the Fourth Proportional to 8,812.76, 13,220.58 and 3,266.12

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Solution

The fourth proportional to 8,812.76, 13,220.58 and 3,266.12 is: 4,899.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.76 : 13,220.58 = 3,266.12 : x
  2. Step 2: Convert to fraction form
    8,812.76/13,220.58 = 3,266.12/x
  3. Step 3: Cross multiply
    8,812.76x = 13,220.58 × 3,266.12
  4. Step 4: Simplify right side
    8,812.76x = 43,180,000.75
  5. Step 5: Solve for x
    x = 43,180,000.75/8,812.76
  6. Step 6: Final answer
    x = 4,899.71

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1.5x scale

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.