Home / 11,517.36-15,896.13-7,212.45

Finding the Fourth Proportional to 11,517.36, 15,896.13 and 7,212.45

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Solution

The fourth proportional to 11,517.36, 15,896.13 and 7,212.45 is: 9,954.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.36 : 15,896.13 = 7,212.45 : x
  2. Step 2: Convert to fraction form
    11,517.36/15,896.13 = 7,212.45/x
  3. Step 3: Cross multiply
    11,517.36x = 15,896.13 × 7,212.45
  4. Step 4: Simplify right side
    11,517.36x = 114,650,042.82
  5. Step 5: Solve for x
    x = 114,650,042.82/11,517.36
  6. Step 6: Final answer
    x = 9,954.54

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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.