Home / 7,928.36-11,892.66-3,768.80

Finding the Fourth Proportional to 7,928.36, 11,892.66 and 3,768.80

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Solution

The fourth proportional to 7,928.36, 11,892.66 and 3,768.80 is: 5,653.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.36 : 11,892.66 = 3,768.80 : x
  2. Step 2: Convert to fraction form
    7,928.36/11,892.66 = 3,768.80/x
  3. Step 3: Cross multiply
    7,928.36x = 11,892.66 × 3,768.80
  4. Step 4: Simplify right side
    7,928.36x = 44,820,978.70
  5. Step 5: Solve for x
    x = 44,820,978.70/7,928.36
  6. Step 6: Final answer
    x = 5,653.25

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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.