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Finding the Fourth Proportional to 8,451.61, 12,679.44 and 2,529

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Solution

The fourth proportional to 8,451.61, 12,679.44 and 2,529 is: 3,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.61 : 12,679.44 = 2,529 : x
  2. Step 2: Convert to fraction form
    8,451.61/12,679.44 = 2,529/x
  3. Step 3: Cross multiply
    8,451.61x = 12,679.44 × 2,529
  4. Step 4: Simplify right side
    8,451.61x = 32,066,303.76
  5. Step 5: Solve for x
    x = 32,066,303.76/8,451.61
  6. Step 6: Final answer
    x = 3,794.11

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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.