Home / 13,728.50-20,533.39-8,092.79

Finding the Fourth Proportional to 13,728.50, 20,533.39 and 8,092.79

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Solution

The fourth proportional to 13,728.50, 20,533.39 and 8,092.79 is: 12,104.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.50 : 20,533.39 = 8,092.79 : x
  2. Step 2: Convert to fraction form
    13,728.50/20,533.39 = 8,092.79/x
  3. Step 3: Cross multiply
    13,728.50x = 20,533.39 × 8,092.79
  4. Step 4: Simplify right side
    13,728.50x = 166,172,413.26
  5. Step 5: Solve for x
    x = 166,172,413.26/13,728.50
  6. Step 6: Final answer
    x = 12,104.19

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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.