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Finding the Fourth Proportional to 8,603.83, 12,906.01 and 3,057.08

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Solution

The fourth proportional to 8,603.83, 12,906.01 and 3,057.08 is: 4,585.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.83 : 12,906.01 = 3,057.08 : x
  2. Step 2: Convert to fraction form
    8,603.83/12,906.01 = 3,057.08/x
  3. Step 3: Cross multiply
    8,603.83x = 12,906.01 × 3,057.08
  4. Step 4: Simplify right side
    8,603.83x = 39,454,705.05
  5. Step 5: Solve for x
    x = 39,454,705.05/8,603.83
  6. Step 6: Final answer
    x = 4,585.71

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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.