Home / 14,343.85-21,517.10-5,579.43

Finding the Fourth Proportional to 14,343.85, 21,517.10 and 5,579.43

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Solution

The fourth proportional to 14,343.85, 21,517.10 and 5,579.43 is: 8,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,343.85 : 21,517.10 = 5,579.43 : x
  2. Step 2: Convert to fraction form
    14,343.85/21,517.10 = 5,579.43/x
  3. Step 3: Cross multiply
    14,343.85x = 21,517.10 × 5,579.43
  4. Step 4: Simplify right side
    14,343.85x = 120,053,153.25
  5. Step 5: Solve for x
    x = 120,053,153.25/14,343.85
  6. Step 6: Final answer
    x = 8,369.66

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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.