Home / 13,945.38-20,923.86-7,704.83

Finding the Fourth Proportional to 13,945.38, 20,923.86 and 7,704.83

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Solution

The fourth proportional to 13,945.38, 20,923.86 and 7,704.83 is: 11,560.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.38 : 20,923.86 = 7,704.83 : x
  2. Step 2: Convert to fraction form
    13,945.38/20,923.86 = 7,704.83/x
  3. Step 3: Cross multiply
    13,945.38x = 20,923.86 × 7,704.83
  4. Step 4: Simplify right side
    13,945.38x = 161,214,679.62
  5. Step 5: Solve for x
    x = 161,214,679.62/13,945.38
  6. Step 6: Final answer
    x = 11,560.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.