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Finding the Fourth Proportional to 8,603.81, 12,906.15 and 2,684.73

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Solution

The fourth proportional to 8,603.81, 12,906.15 and 2,684.73 is: 4,027.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.81 : 12,906.15 = 2,684.73 : x
  2. Step 2: Convert to fraction form
    8,603.81/12,906.15 = 2,684.73/x
  3. Step 3: Cross multiply
    8,603.81x = 12,906.15 × 2,684.73
  4. Step 4: Simplify right side
    8,603.81x = 34,649,528.09
  5. Step 5: Solve for x
    x = 34,649,528.09/8,603.81
  6. Step 6: Final answer
    x = 4,027.23

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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.