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Finding the Fourth Proportional to 12,516, 18,774 and 3,282

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Solution

The fourth proportional to 12,516, 18,774 and 3,282 is: 4,923

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516 : 18,774 = 3,282 : x
  2. Step 2: Convert to fraction form
    12,516/18,774 = 3,282/x
  3. Step 3: Cross multiply
    12,516x = 18,774 × 3,282
  4. Step 4: Simplify right side
    12,516x = 61,616,268
  5. Step 5: Solve for x
    x = 61,616,268/12,516
  6. Step 6: Final answer
    x = 4,923

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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.