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Finding the Fourth Proportional to 7,245.68, 9,994.39 and 4,975.92

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Solution

The fourth proportional to 7,245.68, 9,994.39 and 4,975.92 is: 6,863.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.68 : 9,994.39 = 4,975.92 : x
  2. Step 2: Convert to fraction form
    7,245.68/9,994.39 = 4,975.92/x
  3. Step 3: Cross multiply
    7,245.68x = 9,994.39 × 4,975.92
  4. Step 4: Simplify right side
    7,245.68x = 49,731,272.65
  5. Step 5: Solve for x
    x = 49,731,272.65/7,245.68
  6. Step 6: Final answer
    x = 6,863.58

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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.