Home / 9,128.58-13,692.87-3,285.04

Finding the Fourth Proportional to 9,128.58, 13,692.87 and 3,285.04

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Solution

The fourth proportional to 9,128.58, 13,692.87 and 3,285.04 is: 4,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.58 : 13,692.87 = 3,285.04 : x
  2. Step 2: Convert to fraction form
    9,128.58/13,692.87 = 3,285.04/x
  3. Step 3: Cross multiply
    9,128.58x = 13,692.87 × 3,285.04
  4. Step 4: Simplify right side
    9,128.58x = 44,981,625.66
  5. Step 5: Solve for x
    x = 44,981,625.66/9,128.58
  6. Step 6: Final answer
    x = 4,927.56

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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.