Home / 13,928.49-20,747.97-13,173.96

Finding the Fourth Proportional to 13,928.49, 20,747.97 and 13,173.96

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Solution

The fourth proportional to 13,928.49, 20,747.97 and 13,173.96 is: 19,624.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.49 : 20,747.97 = 13,173.96 : x
  2. Step 2: Convert to fraction form
    13,928.49/20,747.97 = 13,173.96/x
  3. Step 3: Cross multiply
    13,928.49x = 20,747.97 × 13,173.96
  4. Step 4: Simplify right side
    13,928.49x = 273,332,926.86
  5. Step 5: Solve for x
    x = 273,332,926.86/13,928.49
  6. Step 6: Final answer
    x = 19,624.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.