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Finding the Fourth Proportional to 12,122.01, 18,183 and 3,802.70

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Solution

The fourth proportional to 12,122.01, 18,183 and 3,802.70 is: 5,704.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.01 : 18,183 = 3,802.70 : x
  2. Step 2: Convert to fraction form
    12,122.01/18,183 = 3,802.70/x
  3. Step 3: Cross multiply
    12,122.01x = 18,183 × 3,802.70
  4. Step 4: Simplify right side
    12,122.01x = 69,144,403.19
  5. Step 5: Solve for x
    x = 69,144,403.19/12,122.01
  6. Step 6: Final answer
    x = 5,704.04

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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.