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Finding the Fourth Proportional to 8,609.03, 12,902.78 and 3,672.90

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Solution

The fourth proportional to 8,609.03, 12,902.78 and 3,672.90 is: 5,504.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.03 : 12,902.78 = 3,672.90 : x
  2. Step 2: Convert to fraction form
    8,609.03/12,902.78 = 3,672.90/x
  3. Step 3: Cross multiply
    8,609.03x = 12,902.78 × 3,672.90
  4. Step 4: Simplify right side
    8,609.03x = 47,390,602.30
  5. Step 5: Solve for x
    x = 47,390,602.30/8,609.03
  6. Step 6: Final answer
    x = 5,504.76

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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.