Home / 7,928.09-11,893.50-2,663.60

Finding the Fourth Proportional to 7,928.09, 11,893.50 and 2,663.60

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Solution

The fourth proportional to 7,928.09, 11,893.50 and 2,663.60 is: 3,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.09 : 11,893.50 = 2,663.60 : x
  2. Step 2: Convert to fraction form
    7,928.09/11,893.50 = 2,663.60/x
  3. Step 3: Cross multiply
    7,928.09x = 11,893.50 × 2,663.60
  4. Step 4: Simplify right side
    7,928.09x = 31,679,546.35
  5. Step 5: Solve for x
    x = 31,679,546.35/7,928.09
  6. Step 6: Final answer
    x = 3,995.86

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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.