Home / 18,276.44-27,413.25-5,128.28

Finding the Fourth Proportional to 18,276.44, 27,413.25 and 5,128.28

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Solution

The fourth proportional to 18,276.44, 27,413.25 and 5,128.28 is: 7,692.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.44 : 27,413.25 = 5,128.28 : x
  2. Step 2: Convert to fraction form
    18,276.44/27,413.25 = 5,128.28/x
  3. Step 3: Cross multiply
    18,276.44x = 27,413.25 × 5,128.28
  4. Step 4: Simplify right side
    18,276.44x = 140,582,821.71
  5. Step 5: Solve for x
    x = 140,582,821.71/18,276.44
  6. Step 6: Final answer
    x = 7,692.02

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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.