Home / 11,321.44-16,979.73-7,102.66

Finding the Fourth Proportional to 11,321.44, 16,979.73 and 7,102.66

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Solution

The fourth proportional to 11,321.44, 16,979.73 and 7,102.66 is: 10,652.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.44 : 16,979.73 = 7,102.66 : x
  2. Step 2: Convert to fraction form
    11,321.44/16,979.73 = 7,102.66/x
  3. Step 3: Cross multiply
    11,321.44x = 16,979.73 × 7,102.66
  4. Step 4: Simplify right side
    11,321.44x = 120,601,309.29
  5. Step 5: Solve for x
    x = 120,601,309.29/11,321.44
  6. Step 6: Final answer
    x = 10,652.47

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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.