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Finding the Fourth Proportional to 8,486.97, 12,737.94 and 4,107.70

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Solution

The fourth proportional to 8,486.97, 12,737.94 and 4,107.70 is: 6,165.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.97 : 12,737.94 = 4,107.70 : x
  2. Step 2: Convert to fraction form
    8,486.97/12,737.94 = 4,107.70/x
  3. Step 3: Cross multiply
    8,486.97x = 12,737.94 × 4,107.70
  4. Step 4: Simplify right side
    8,486.97x = 52,323,636.14
  5. Step 5: Solve for x
    x = 52,323,636.14/8,486.97
  6. Step 6: Final answer
    x = 6,165.17

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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.