Home / 12,321.44-17,003.79-7,016.75

Finding the Fourth Proportional to 12,321.44, 17,003.79 and 7,016.75

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Solution

The fourth proportional to 12,321.44, 17,003.79 and 7,016.75 is: 9,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.44 : 17,003.79 = 7,016.75 : x
  2. Step 2: Convert to fraction form
    12,321.44/17,003.79 = 7,016.75/x
  3. Step 3: Cross multiply
    12,321.44x = 17,003.79 × 7,016.75
  4. Step 4: Simplify right side
    12,321.44x = 119,311,343.48
  5. Step 5: Solve for x
    x = 119,311,343.48/12,321.44
  6. Step 6: Final answer
    x = 9,683.23

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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.