Home / 11,436.89-17,157.27-3,940.16

Finding the Fourth Proportional to 11,436.89, 17,157.27 and 3,940.16

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Solution

The fourth proportional to 11,436.89, 17,157.27 and 3,940.16 is: 5,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.89 : 17,157.27 = 3,940.16 : x
  2. Step 2: Convert to fraction form
    11,436.89/17,157.27 = 3,940.16/x
  3. Step 3: Cross multiply
    11,436.89x = 17,157.27 × 3,940.16
  4. Step 4: Simplify right side
    11,436.89x = 67,602,388.96
  5. Step 5: Solve for x
    x = 67,602,388.96/11,436.89
  6. Step 6: Final answer
    x = 5,910.91

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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.