Home / 11,128.43-16,692.62-2,809.11

Finding the Fourth Proportional to 11,128.43, 16,692.62 and 2,809.11

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Solution

The fourth proportional to 11,128.43, 16,692.62 and 2,809.11 is: 4,213.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.43 : 16,692.62 = 2,809.11 : x
  2. Step 2: Convert to fraction form
    11,128.43/16,692.62 = 2,809.11/x
  3. Step 3: Cross multiply
    11,128.43x = 16,692.62 × 2,809.11
  4. Step 4: Simplify right side
    11,128.43x = 46,891,454.32
  5. Step 5: Solve for x
    x = 46,891,454.32/11,128.43
  6. Step 6: Final answer
    x = 4,213.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.