Home / 7,944.06-11,915.96-1,940.16

Finding the Fourth Proportional to 7,944.06, 11,915.96 and 1,940.16

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Solution

The fourth proportional to 7,944.06, 11,915.96 and 1,940.16 is: 2,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.06 : 11,915.96 = 1,940.16 : x
  2. Step 2: Convert to fraction form
    7,944.06/11,915.96 = 1,940.16/x
  3. Step 3: Cross multiply
    7,944.06x = 11,915.96 × 1,940.16
  4. Step 4: Simplify right side
    7,944.06x = 23,118,868.95
  5. Step 5: Solve for x
    x = 23,118,868.95/7,944.06
  6. Step 6: Final answer
    x = 2,910.21

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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.