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Finding the Fourth Proportional to 9,279.25, 12,805.37 and 5,087.50

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Solution

The fourth proportional to 9,279.25, 12,805.37 and 5,087.50 is: 7,020.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.25 : 12,805.37 = 5,087.50 : x
  2. Step 2: Convert to fraction form
    9,279.25/12,805.37 = 5,087.50/x
  3. Step 3: Cross multiply
    9,279.25x = 12,805.37 × 5,087.50
  4. Step 4: Simplify right side
    9,279.25x = 65,147,319.88
  5. Step 5: Solve for x
    x = 65,147,319.88/9,279.25
  6. Step 6: Final answer
    x = 7,020.75

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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.