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Finding the Fourth Proportional to 14,928, 20,600.64 and 8,644.08

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Solution

The fourth proportional to 14,928, 20,600.64 and 8,644.08 is: 11,928.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,928 : 20,600.64 = 8,644.08 : x
  2. Step 2: Convert to fraction form
    14,928/20,600.64 = 8,644.08/x
  3. Step 3: Cross multiply
    14,928x = 20,600.64 × 8,644.08
  4. Step 4: Simplify right side
    14,928x = 178,073,580.21
  5. Step 5: Solve for x
    x = 178,073,580.21/14,928
  6. Step 6: Final answer
    x = 11,928.83

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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.