Home / 12,949.76-19,413.12-4,739.84

Finding the Fourth Proportional to 12,949.76, 19,413.12 and 4,739.84

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Solution

The fourth proportional to 12,949.76, 19,413.12 and 4,739.84 is: 7,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.76 : 19,413.12 = 4,739.84 : x
  2. Step 2: Convert to fraction form
    12,949.76/19,413.12 = 4,739.84/x
  3. Step 3: Cross multiply
    12,949.76x = 19,413.12 × 4,739.84
  4. Step 4: Simplify right side
    12,949.76x = 92,015,082.70
  5. Step 5: Solve for x
    x = 92,015,082.70/12,949.76
  6. Step 6: Final answer
    x = 7,105.54

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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.