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Finding the Fourth Proportional to 12,443.73, 17,172.35 and 6,854.73

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Solution

The fourth proportional to 12,443.73, 17,172.35 and 6,854.73 is: 9,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443.73 : 17,172.35 = 6,854.73 : x
  2. Step 2: Convert to fraction form
    12,443.73/17,172.35 = 6,854.73/x
  3. Step 3: Cross multiply
    12,443.73x = 17,172.35 × 6,854.73
  4. Step 4: Simplify right side
    12,443.73x = 117,711,788.44
  5. Step 5: Solve for x
    x = 117,711,788.44/12,443.73
  6. Step 6: Final answer
    x = 9,459.53

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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.