Home / 12,119.88-18,175.08-4,723.36

Finding the Fourth Proportional to 12,119.88, 18,175.08 and 4,723.36

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Solution

The fourth proportional to 12,119.88, 18,175.08 and 4,723.36 is: 7,083.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.88 : 18,175.08 = 4,723.36 : x
  2. Step 2: Convert to fraction form
    12,119.88/18,175.08 = 4,723.36/x
  3. Step 3: Cross multiply
    12,119.88x = 18,175.08 × 4,723.36
  4. Step 4: Simplify right side
    12,119.88x = 85,847,445.87
  5. Step 5: Solve for x
    x = 85,847,445.87/12,119.88
  6. Step 6: Final answer
    x = 7,083.19

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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.