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Finding the Fourth Proportional to 14,763, 20,372.94 and 8,477.40

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Solution

The fourth proportional to 14,763, 20,372.94 and 8,477.40 is: 11,698.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,763 : 20,372.94 = 8,477.40 : x
  2. Step 2: Convert to fraction form
    14,763/20,372.94 = 8,477.40/x
  3. Step 3: Cross multiply
    14,763x = 20,372.94 × 8,477.40
  4. Step 4: Simplify right side
    14,763x = 172,709,561.56
  5. Step 5: Solve for x
    x = 172,709,561.56/14,763
  6. Step 6: Final answer
    x = 11,698.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.