Home / 10,783.87-16,178.37-3,388.32

Finding the Fourth Proportional to 10,783.87, 16,178.37 and 3,388.32

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Solution

The fourth proportional to 10,783.87, 16,178.37 and 3,388.32 is: 5,083.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783.87 : 16,178.37 = 3,388.32 : x
  2. Step 2: Convert to fraction form
    10,783.87/16,178.37 = 3,388.32/x
  3. Step 3: Cross multiply
    10,783.87x = 16,178.37 × 3,388.32
  4. Step 4: Simplify right side
    10,783.87x = 54,817,413.75
  5. Step 5: Solve for x
    x = 54,817,413.75/10,783.87
  6. Step 6: Final answer
    x = 5,083.28

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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.