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Finding the Fourth Proportional to 18,187.84, 27,281.69 and 5,040.18

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Solution

The fourth proportional to 18,187.84, 27,281.69 and 5,040.18 is: 7,560.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.84 : 27,281.69 = 5,040.18 : x
  2. Step 2: Convert to fraction form
    18,187.84/27,281.69 = 5,040.18/x
  3. Step 3: Cross multiply
    18,187.84x = 27,281.69 × 5,040.18
  4. Step 4: Simplify right side
    18,187.84x = 137,504,466.69
  5. Step 5: Solve for x
    x = 137,504,466.69/18,187.84
  6. Step 6: Final answer
    x = 7,560.24

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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.