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Finding the Fourth Proportional to 14,928, 20,600.72 and 8,304

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Solution

The fourth proportional to 14,928, 20,600.72 and 8,304 is: 11,459.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,928 : 20,600.72 = 8,304 : x
  2. Step 2: Convert to fraction form
    14,928/20,600.72 = 8,304/x
  3. Step 3: Cross multiply
    14,928x = 20,600.72 × 8,304
  4. Step 4: Simplify right side
    14,928x = 171,068,378.88
  5. Step 5: Solve for x
    x = 171,068,378.88/14,928
  6. Step 6: Final answer
    x = 11,459.56

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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.