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Finding the Fourth Proportional to 13,674.02, 20,511.02 and 7,826.56

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Solution

The fourth proportional to 13,674.02, 20,511.02 and 7,826.56 is: 11,739.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.02 : 20,511.02 = 7,826.56 : x
  2. Step 2: Convert to fraction form
    13,674.02/20,511.02 = 7,826.56/x
  3. Step 3: Cross multiply
    13,674.02x = 20,511.02 × 7,826.56
  4. Step 4: Simplify right side
    13,674.02x = 160,530,696.98
  5. Step 5: Solve for x
    x = 160,530,696.98/13,674.02
  6. Step 6: Final answer
    x = 11,739.84

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Similar ratio
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1.5x scale

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.