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Finding the Fourth Proportional to 16,918.50, 23,346.95 and 9,365.16

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Solution

The fourth proportional to 16,918.50, 23,346.95 and 9,365.16 is: 12,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.50 : 23,346.95 = 9,365.16 : x
  2. Step 2: Convert to fraction form
    16,918.50/23,346.95 = 9,365.16/x
  3. Step 3: Cross multiply
    16,918.50x = 23,346.95 × 9,365.16
  4. Step 4: Simplify right side
    16,918.50x = 218,647,875.44
  5. Step 5: Solve for x
    x = 218,647,875.44/16,918.50
  6. Step 6: Final answer
    x = 12,923.60

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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.