Home / 12,563.80-18,845.45-3,203.61

Finding the Fourth Proportional to 12,563.80, 18,845.45 and 3,203.61

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Solution

The fourth proportional to 12,563.80, 18,845.45 and 3,203.61 is: 4,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.80 : 18,845.45 = 3,203.61 : x
  2. Step 2: Convert to fraction form
    12,563.80/18,845.45 = 3,203.61/x
  3. Step 3: Cross multiply
    12,563.80x = 18,845.45 × 3,203.61
  4. Step 4: Simplify right side
    12,563.80x = 60,373,525.40
  5. Step 5: Solve for x
    x = 60,373,525.40/12,563.80
  6. Step 6: Final answer
    x = 4,805.35

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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.