Home / 12,892.62-19,318.80-8,951.57

Finding the Fourth Proportional to 12,892.62, 19,318.80 and 8,951.57

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Solution

The fourth proportional to 12,892.62, 19,318.80 and 8,951.57 is: 13,413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,892.62 : 19,318.80 = 8,951.57 : x
  2. Step 2: Convert to fraction form
    12,892.62/19,318.80 = 8,951.57/x
  3. Step 3: Cross multiply
    12,892.62x = 19,318.80 × 8,951.57
  4. Step 4: Simplify right side
    12,892.62x = 172,933,493.92
  5. Step 5: Solve for x
    x = 172,933,493.92/12,892.62
  6. Step 6: Final answer
    x = 13,413.37

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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.