Home / 11,107.96-15,326.14-6,629.88

Finding the Fourth Proportional to 11,107.96, 15,326.14 and 6,629.88

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Solution

The fourth proportional to 11,107.96, 15,326.14 and 6,629.88 is: 9,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.96 : 15,326.14 = 6,629.88 : x
  2. Step 2: Convert to fraction form
    11,107.96/15,326.14 = 6,629.88/x
  3. Step 3: Cross multiply
    11,107.96x = 15,326.14 × 6,629.88
  4. Step 4: Simplify right side
    11,107.96x = 101,610,469.06
  5. Step 5: Solve for x
    x = 101,610,469.06/11,107.96
  6. Step 6: Final answer
    x = 9,147.54

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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.