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Finding the Fourth Proportional to 12,284.34, 16,947 and 8,304

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Solution

The fourth proportional to 12,284.34, 16,947 and 8,304 is: 11,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,284.34 : 16,947 = 8,304 : x
  2. Step 2: Convert to fraction form
    12,284.34/16,947 = 8,304/x
  3. Step 3: Cross multiply
    12,284.34x = 16,947 × 8,304
  4. Step 4: Simplify right side
    12,284.34x = 140,727,888
  5. Step 5: Solve for x
    x = 140,727,888/12,284.34
  6. Step 6: Final answer
    x = 11,455.88

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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.