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Finding the Fourth Proportional to 8,245.34, 12,369.51 and 2,698.99

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Solution

The fourth proportional to 8,245.34, 12,369.51 and 2,698.99 is: 4,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.34 : 12,369.51 = 2,698.99 : x
  2. Step 2: Convert to fraction form
    8,245.34/12,369.51 = 2,698.99/x
  3. Step 3: Cross multiply
    8,245.34x = 12,369.51 × 2,698.99
  4. Step 4: Simplify right side
    8,245.34x = 33,385,121.95
  5. Step 5: Solve for x
    x = 33,385,121.95/8,245.34
  6. Step 6: Final answer
    x = 4,048.97

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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.