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Finding the Fourth Proportional to 14,960.70, 20,644.79 and 8,245.94

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Solution

The fourth proportional to 14,960.70, 20,644.79 and 8,245.94 is: 11,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,960.70 : 20,644.79 = 8,245.94 : x
  2. Step 2: Convert to fraction form
    14,960.70/20,644.79 = 8,245.94/x
  3. Step 3: Cross multiply
    14,960.70x = 20,644.79 × 8,245.94
  4. Step 4: Simplify right side
    14,960.70x = 170,235,555.20
  5. Step 5: Solve for x
    x = 170,235,555.20/14,960.70
  6. Step 6: Final answer
    x = 11,378.85

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1.5x scale

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.