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Finding the Fourth Proportional to 7,258.68, 10,017.09 and 4,072.68

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Solution

The fourth proportional to 7,258.68, 10,017.09 and 4,072.68 is: 5,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258.68 : 10,017.09 = 4,072.68 : x
  2. Step 2: Convert to fraction form
    7,258.68/10,017.09 = 4,072.68/x
  3. Step 3: Cross multiply
    7,258.68x = 10,017.09 × 4,072.68
  4. Step 4: Simplify right side
    7,258.68x = 40,796,331.65
  5. Step 5: Solve for x
    x = 40,796,331.65/7,258.68
  6. Step 6: Final answer
    x = 5,620.36

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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.