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Finding the Fourth Proportional to 8,907.63, 12,292.73 and 5,769.28

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Solution

The fourth proportional to 8,907.63, 12,292.73 and 5,769.28 is: 7,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.63 : 12,292.73 = 5,769.28 : x
  2. Step 2: Convert to fraction form
    8,907.63/12,292.73 = 5,769.28/x
  3. Step 3: Cross multiply
    8,907.63x = 12,292.73 × 5,769.28
  4. Step 4: Simplify right side
    8,907.63x = 70,920,201.33
  5. Step 5: Solve for x
    x = 70,920,201.33/8,907.63
  6. Step 6: Final answer
    x = 7,961.74

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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.