Home / 11,716.60-16,168.68-6,411.36

Finding the Fourth Proportional to 11,716.60, 16,168.68 and 6,411.36

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Solution

The fourth proportional to 11,716.60, 16,168.68 and 6,411.36 is: 8,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.60 : 16,168.68 = 6,411.36 : x
  2. Step 2: Convert to fraction form
    11,716.60/16,168.68 = 6,411.36/x
  3. Step 3: Cross multiply
    11,716.60x = 16,168.68 × 6,411.36
  4. Step 4: Simplify right side
    11,716.60x = 103,663,228.20
  5. Step 5: Solve for x
    x = 103,663,228.20/11,716.60
  6. Step 6: Final answer
    x = 8,847.55

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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.