Home / 11,917.50-16,445.70-6,611.94

Finding the Fourth Proportional to 11,917.50, 16,445.70 and 6,611.94

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Solution

The fourth proportional to 11,917.50, 16,445.70 and 6,611.94 is: 9,124.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.50 : 16,445.70 = 6,611.94 : x
  2. Step 2: Convert to fraction form
    11,917.50/16,445.70 = 6,611.94/x
  3. Step 3: Cross multiply
    11,917.50x = 16,445.70 × 6,611.94
  4. Step 4: Simplify right side
    11,917.50x = 108,737,981.66
  5. Step 5: Solve for x
    x = 108,737,981.66/11,917.50
  6. Step 6: Final answer
    x = 9,124.23

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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.