Home / 11,716.57-16,168.87-6,411.39

Finding the Fourth Proportional to 11,716.57, 16,168.87 and 6,411.39

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Solution

The fourth proportional to 11,716.57, 16,168.87 and 6,411.39 is: 8,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.57 : 16,168.87 = 6,411.39 : x
  2. Step 2: Convert to fraction form
    11,716.57/16,168.87 = 6,411.39/x
  3. Step 3: Cross multiply
    11,716.57x = 16,168.87 × 6,411.39
  4. Step 4: Simplify right side
    11,716.57x = 103,664,957.56
  5. Step 5: Solve for x
    x = 103,664,957.56/11,716.57
  6. Step 6: Final answer
    x = 8,847.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.