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Finding the Fourth Proportional to 16,940.12, 25,412.64 and 5,254.28

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Solution

The fourth proportional to 16,940.12, 25,412.64 and 5,254.28 is: 7,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,940.12 : 25,412.64 = 5,254.28 : x
  2. Step 2: Convert to fraction form
    16,940.12/25,412.64 = 5,254.28/x
  3. Step 3: Cross multiply
    16,940.12x = 25,412.64 × 5,254.28
  4. Step 4: Simplify right side
    16,940.12x = 133,525,126.10
  5. Step 5: Solve for x
    x = 133,525,126.10/16,940.12
  6. Step 6: Final answer
    x = 7,882.18

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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.