Home / 13,945.14-19,245.06-9,221.22

Finding the Fourth Proportional to 13,945.14, 19,245.06 and 9,221.22

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Solution

The fourth proportional to 13,945.14, 19,245.06 and 9,221.22 is: 12,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.14 : 19,245.06 = 9,221.22 : x
  2. Step 2: Convert to fraction form
    13,945.14/19,245.06 = 9,221.22/x
  3. Step 3: Cross multiply
    13,945.14x = 19,245.06 × 9,221.22
  4. Step 4: Simplify right side
    13,945.14x = 177,462,932.17
  5. Step 5: Solve for x
    x = 177,462,932.17/13,945.14
  6. Step 6: Final answer
    x = 12,725.79

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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.