Home / 11,917.14-16,445.66-6,611.96

Finding the Fourth Proportional to 11,917.14, 16,445.66 and 6,611.96

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Solution

The fourth proportional to 11,917.14, 16,445.66 and 6,611.96 is: 9,124.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.14 : 16,445.66 = 6,611.96 : x
  2. Step 2: Convert to fraction form
    11,917.14/16,445.66 = 6,611.96/x
  3. Step 3: Cross multiply
    11,917.14x = 16,445.66 × 6,611.96
  4. Step 4: Simplify right side
    11,917.14x = 108,737,930.81
  5. Step 5: Solve for x
    x = 108,737,930.81/11,917.14
  6. Step 6: Final answer
    x = 9,124.50

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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.