Home / 12,605.13-18,910.52-3,840.73

Finding the Fourth Proportional to 12,605.13, 18,910.52 and 3,840.73

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Solution

The fourth proportional to 12,605.13, 18,910.52 and 3,840.73 is: 5,761.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.13 : 18,910.52 = 3,840.73 : x
  2. Step 2: Convert to fraction form
    12,605.13/18,910.52 = 3,840.73/x
  3. Step 3: Cross multiply
    12,605.13x = 18,910.52 × 3,840.73
  4. Step 4: Simplify right side
    12,605.13x = 72,630,201.48
  5. Step 5: Solve for x
    x = 72,630,201.48/12,605.13
  6. Step 6: Final answer
    x = 5,761.96

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1.5x scale

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.