Home / 11,512.11-15,887.30-6,796.29

Finding the Fourth Proportional to 11,512.11, 15,887.30 and 6,796.29

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Solution

The fourth proportional to 11,512.11, 15,887.30 and 6,796.29 is: 9,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.11 : 15,887.30 = 6,796.29 : x
  2. Step 2: Convert to fraction form
    11,512.11/15,887.30 = 6,796.29/x
  3. Step 3: Cross multiply
    11,512.11x = 15,887.30 × 6,796.29
  4. Step 4: Simplify right side
    11,512.11x = 107,974,664.14
  5. Step 5: Solve for x
    x = 107,974,664.14/11,512.11
  6. Step 6: Final answer
    x = 9,379.22

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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.