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Finding the Fourth Proportional to 8,453.79, 12,682.05 and 2,609.03

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Solution

The fourth proportional to 8,453.79, 12,682.05 and 2,609.03 is: 3,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.79 : 12,682.05 = 2,609.03 : x
  2. Step 2: Convert to fraction form
    8,453.79/12,682.05 = 2,609.03/x
  3. Step 3: Cross multiply
    8,453.79x = 12,682.05 × 2,609.03
  4. Step 4: Simplify right side
    8,453.79x = 33,087,848.91
  5. Step 5: Solve for x
    x = 33,087,848.91/8,453.79
  6. Step 6: Final answer
    x = 3,913.97

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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.