Home / 19,413.62-29,120.43-7,726.94

Finding the Fourth Proportional to 19,413.62, 29,120.43 and 7,726.94

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Solution

The fourth proportional to 19,413.62, 29,120.43 and 7,726.94 is: 11,590.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,413.62 : 29,120.43 = 7,726.94 : x
  2. Step 2: Convert to fraction form
    19,413.62/29,120.43 = 7,726.94/x
  3. Step 3: Cross multiply
    19,413.62x = 29,120.43 × 7,726.94
  4. Step 4: Simplify right side
    19,413.62x = 225,011,815.38
  5. Step 5: Solve for x
    x = 225,011,815.38/19,413.62
  6. Step 6: Final answer
    x = 11,590.41

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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.