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Finding the Fourth Proportional to 7,907.45, 11,855.69 and 4,788.23

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Solution

The fourth proportional to 7,907.45, 11,855.69 and 4,788.23 is: 7,179.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.45 : 11,855.69 = 4,788.23 : x
  2. Step 2: Convert to fraction form
    7,907.45/11,855.69 = 4,788.23/x
  3. Step 3: Cross multiply
    7,907.45x = 11,855.69 × 4,788.23
  4. Step 4: Simplify right side
    7,907.45x = 56,767,687.31
  5. Step 5: Solve for x
    x = 56,767,687.31/7,907.45
  6. Step 6: Final answer
    x = 7,179.02

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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.