Home / 13,749.75-18,945.36-9,265.73

Finding the Fourth Proportional to 13,749.75, 18,945.36 and 9,265.73

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Solution

The fourth proportional to 13,749.75, 18,945.36 and 9,265.73 is: 12,766.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.75 : 18,945.36 = 9,265.73 : x
  2. Step 2: Convert to fraction form
    13,749.75/18,945.36 = 9,265.73/x
  3. Step 3: Cross multiply
    13,749.75x = 18,945.36 × 9,265.73
  4. Step 4: Simplify right side
    13,749.75x = 175,542,495.79
  5. Step 5: Solve for x
    x = 175,542,495.79/13,749.75
  6. Step 6: Final answer
    x = 12,766.96

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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.