Home / 18,950.22-28,413.16-7,864.56

Finding the Fourth Proportional to 18,950.22, 28,413.16 and 7,864.56

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Solution

The fourth proportional to 18,950.22, 28,413.16 and 7,864.56 is: 11,791.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.22 : 28,413.16 = 7,864.56 : x
  2. Step 2: Convert to fraction form
    18,950.22/28,413.16 = 7,864.56/x
  3. Step 3: Cross multiply
    18,950.22x = 28,413.16 × 7,864.56
  4. Step 4: Simplify right side
    18,950.22x = 223,457,001.61
  5. Step 5: Solve for x
    x = 223,457,001.61/18,950.22
  6. Step 6: Final answer
    x = 11,791.79

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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.