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Finding the Fourth Proportional to 12,260.99, 18,394.20 and 4,469.79

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Solution

The fourth proportional to 12,260.99, 18,394.20 and 4,469.79 is: 6,705.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.99 : 18,394.20 = 4,469.79 : x
  2. Step 2: Convert to fraction form
    12,260.99/18,394.20 = 4,469.79/x
  3. Step 3: Cross multiply
    12,260.99x = 18,394.20 × 4,469.79
  4. Step 4: Simplify right side
    12,260.99x = 82,218,211.22
  5. Step 5: Solve for x
    x = 82,218,211.22/12,260.99
  6. Step 6: Final answer
    x = 6,705.68

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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.