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Finding the Fourth Proportional to 14,144.56, 21,216.56 and 3,756

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Solution

The fourth proportional to 14,144.56, 21,216.56 and 3,756 is: 5,633.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,144.56 : 21,216.56 = 3,756 : x
  2. Step 2: Convert to fraction form
    14,144.56/21,216.56 = 3,756/x
  3. Step 3: Cross multiply
    14,144.56x = 21,216.56 × 3,756
  4. Step 4: Simplify right side
    14,144.56x = 79,689,399.36
  5. Step 5: Solve for x
    x = 79,689,399.36/14,144.56
  6. Step 6: Final answer
    x = 5,633.93

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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.