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Finding the Fourth Proportional to 18,157.98, 27,242.44 and 6,469.68

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Solution

The fourth proportional to 18,157.98, 27,242.44 and 6,469.68 is: 9,706.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.98 : 27,242.44 = 6,469.68 : x
  2. Step 2: Convert to fraction form
    18,157.98/27,242.44 = 6,469.68/x
  3. Step 3: Cross multiply
    18,157.98x = 27,242.44 × 6,469.68
  4. Step 4: Simplify right side
    18,157.98x = 176,249,869.22
  5. Step 5: Solve for x
    x = 176,249,869.22/18,157.98
  6. Step 6: Final answer
    x = 9,706.47

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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.