Home / 12,161.16-18,241.80-3,396.05

Finding the Fourth Proportional to 12,161.16, 18,241.80 and 3,396.05

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Solution

The fourth proportional to 12,161.16, 18,241.80 and 3,396.05 is: 5,094.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.16 : 18,241.80 = 3,396.05 : x
  2. Step 2: Convert to fraction form
    12,161.16/18,241.80 = 3,396.05/x
  3. Step 3: Cross multiply
    12,161.16x = 18,241.80 × 3,396.05
  4. Step 4: Simplify right side
    12,161.16x = 61,950,097.76
  5. Step 5: Solve for x
    x = 61,950,097.76/12,161.16
  6. Step 6: Final answer
    x = 5,094.09

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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.