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Finding the Fourth Proportional to 8,692.68, 13,039.25 and 2,769.47

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Solution

The fourth proportional to 8,692.68, 13,039.25 and 2,769.47 is: 4,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.68 : 13,039.25 = 2,769.47 : x
  2. Step 2: Convert to fraction form
    8,692.68/13,039.25 = 2,769.47/x
  3. Step 3: Cross multiply
    8,692.68x = 13,039.25 × 2,769.47
  4. Step 4: Simplify right side
    8,692.68x = 36,111,854.90
  5. Step 5: Solve for x
    x = 36,111,854.90/8,692.68
  6. Step 6: Final answer
    x = 4,154.28

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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.