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Finding the Fourth Proportional to 16,146, 24,228.72 and 6,912

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Solution

The fourth proportional to 16,146, 24,228.72 and 6,912 is: 10,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,146 : 24,228.72 = 6,912 : x
  2. Step 2: Convert to fraction form
    16,146/24,228.72 = 6,912/x
  3. Step 3: Cross multiply
    16,146x = 24,228.72 × 6,912
  4. Step 4: Simplify right side
    16,146x = 167,468,912.64
  5. Step 5: Solve for x
    x = 167,468,912.64/16,146
  6. Step 6: Final answer
    x = 10,372.16

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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.