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Finding the Fourth Proportional to 43,740, 65,610 and 10,908

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Solution

The fourth proportional to 43,740, 65,610 and 10,908 is: 16,362

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,740 : 65,610 = 10,908 : x
  2. Step 2: Convert to fraction form
    43,740/65,610 = 10,908/x
  3. Step 3: Cross multiply
    43,740x = 65,610 × 10,908
  4. Step 4: Simplify right side
    43,740x = 715,673,880
  5. Step 5: Solve for x
    x = 715,673,880/43,740
  6. Step 6: Final answer
    x = 16,362

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.