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Finding the Fourth Proportional to 8,170.65, 12,253.29 and 2,622.68

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Solution

The fourth proportional to 8,170.65, 12,253.29 and 2,622.68 is: 3,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,170.65 : 12,253.29 = 2,622.68 : x
  2. Step 2: Convert to fraction form
    8,170.65/12,253.29 = 2,622.68/x
  3. Step 3: Cross multiply
    8,170.65x = 12,253.29 × 2,622.68
  4. Step 4: Simplify right side
    8,170.65x = 32,136,458.62
  5. Step 5: Solve for x
    x = 32,136,458.62/8,170.65
  6. Step 6: Final answer
    x = 3,933.16

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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.