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Finding the Fourth Proportional to 8,692.74, 13,039.11 and 4,074.66

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Solution

The fourth proportional to 8,692.74, 13,039.11 and 4,074.66 is: 6,111.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.74 : 13,039.11 = 4,074.66 : x
  2. Step 2: Convert to fraction form
    8,692.74/13,039.11 = 4,074.66/x
  3. Step 3: Cross multiply
    8,692.74x = 13,039.11 × 4,074.66
  4. Step 4: Simplify right side
    8,692.74x = 53,129,939.95
  5. Step 5: Solve for x
    x = 53,129,939.95/8,692.74
  6. Step 6: Final answer
    x = 6,111.99

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Similar ratio
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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.