Home / 13,725.26-18,941.82-7,757.48

Finding the Fourth Proportional to 13,725.26, 18,941.82 and 7,757.48

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Solution

The fourth proportional to 13,725.26, 18,941.82 and 7,757.48 is: 10,705.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.26 : 18,941.82 = 7,757.48 : x
  2. Step 2: Convert to fraction form
    13,725.26/18,941.82 = 7,757.48/x
  3. Step 3: Cross multiply
    13,725.26x = 18,941.82 × 7,757.48
  4. Step 4: Simplify right side
    13,725.26x = 146,940,789.81
  5. Step 5: Solve for x
    x = 146,940,789.81/13,725.26
  6. Step 6: Final answer
    x = 10,705.87

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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.