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Finding the Fourth Proportional to 12,193.61, 16,828.02 and 6,886.49

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Solution

The fourth proportional to 12,193.61, 16,828.02 and 6,886.49 is: 9,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,193.61 : 16,828.02 = 6,886.49 : x
  2. Step 2: Convert to fraction form
    12,193.61/16,828.02 = 6,886.49/x
  3. Step 3: Cross multiply
    12,193.61x = 16,828.02 × 6,886.49
  4. Step 4: Simplify right side
    12,193.61x = 115,885,907.31
  5. Step 5: Solve for x
    x = 115,885,907.31/12,193.61
  6. Step 6: Final answer
    x = 9,503.83

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.