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Finding the Fourth Proportional to 16,905.16, 23,329 and 9,453.16

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Solution

The fourth proportional to 16,905.16, 23,329 and 9,453.16 is: 13,045.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.16 : 23,329 = 9,453.16 : x
  2. Step 2: Convert to fraction form
    16,905.16/23,329 = 9,453.16/x
  3. Step 3: Cross multiply
    16,905.16x = 23,329 × 9,453.16
  4. Step 4: Simplify right side
    16,905.16x = 220,532,769.64
  5. Step 5: Solve for x
    x = 220,532,769.64/16,905.16
  6. Step 6: Final answer
    x = 13,045.29

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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.