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Finding the Fourth Proportional to 8,704.65, 13,057.08 and 3,158.18

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Solution

The fourth proportional to 8,704.65, 13,057.08 and 3,158.18 is: 4,737.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,704.65 : 13,057.08 = 3,158.18 : x
  2. Step 2: Convert to fraction form
    8,704.65/13,057.08 = 3,158.18/x
  3. Step 3: Cross multiply
    8,704.65x = 13,057.08 × 3,158.18
  4. Step 4: Simplify right side
    8,704.65x = 41,236,608.91
  5. Step 5: Solve for x
    x = 41,236,608.91/8,704.65
  6. Step 6: Final answer
    x = 4,737.31

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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.