Home / 7,938.43-11,907.43-2,095.09

Finding the Fourth Proportional to 7,938.43, 11,907.43 and 2,095.09

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Solution

The fourth proportional to 7,938.43, 11,907.43 and 2,095.09 is: 3,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.43 : 11,907.43 = 2,095.09 : x
  2. Step 2: Convert to fraction form
    7,938.43/11,907.43 = 2,095.09/x
  3. Step 3: Cross multiply
    7,938.43x = 11,907.43 × 2,095.09
  4. Step 4: Simplify right side
    7,938.43x = 24,947,102.51
  5. Step 5: Solve for x
    x = 24,947,102.51/7,938.43
  6. Step 6: Final answer
    x = 3,142.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.