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Finding the Fourth Proportional to 18,259.39, 27,369.42 and 7,726.96

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Solution

The fourth proportional to 18,259.39, 27,369.42 and 7,726.96 is: 11,582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,259.39 : 27,369.42 = 7,726.96 : x
  2. Step 2: Convert to fraction form
    18,259.39/27,369.42 = 7,726.96/x
  3. Step 3: Cross multiply
    18,259.39x = 27,369.42 × 7,726.96
  4. Step 4: Simplify right side
    18,259.39x = 211,482,413.56
  5. Step 5: Solve for x
    x = 211,482,413.56/18,259.39
  6. Step 6: Final answer
    x = 11,582.12

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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.