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Finding the Fourth Proportional to 8,776.66, 13,170.72 and 3,230.06

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Solution

The fourth proportional to 8,776.66, 13,170.72 and 3,230.06 is: 4,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.66 : 13,170.72 = 3,230.06 : x
  2. Step 2: Convert to fraction form
    8,776.66/13,170.72 = 3,230.06/x
  3. Step 3: Cross multiply
    8,776.66x = 13,170.72 × 3,230.06
  4. Step 4: Simplify right side
    8,776.66x = 42,542,215.84
  5. Step 5: Solve for x
    x = 42,542,215.84/8,776.66
  6. Step 6: Final answer
    x = 4,847.20

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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.