Home / 7,940.84-11,909.82-4,242.92

Finding the Fourth Proportional to 7,940.84, 11,909.82 and 4,242.92

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Solution

The fourth proportional to 7,940.84, 11,909.82 and 4,242.92 is: 6,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.84 : 11,909.82 = 4,242.92 : x
  2. Step 2: Convert to fraction form
    7,940.84/11,909.82 = 4,242.92/x
  3. Step 3: Cross multiply
    7,940.84x = 11,909.82 × 4,242.92
  4. Step 4: Simplify right side
    7,940.84x = 50,532,413.47
  5. Step 5: Solve for x
    x = 50,532,413.47/7,940.84
  6. Step 6: Final answer
    x = 6,363.61

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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.