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Finding the Fourth Proportional to 8,966.56, 13,449.84 and 2,814.88

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Solution

The fourth proportional to 8,966.56, 13,449.84 and 2,814.88 is: 4,222.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.56 : 13,449.84 = 2,814.88 : x
  2. Step 2: Convert to fraction form
    8,966.56/13,449.84 = 2,814.88/x
  3. Step 3: Cross multiply
    8,966.56x = 13,449.84 × 2,814.88
  4. Step 4: Simplify right side
    8,966.56x = 37,859,685.62
  5. Step 5: Solve for x
    x = 37,859,685.62/8,966.56
  6. Step 6: Final answer
    x = 4,222.32

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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.