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Finding the Fourth Proportional to 12,703.44, 19,022.34 and 8,766.84

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Solution

The fourth proportional to 12,703.44, 19,022.34 and 8,766.84 is: 13,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.44 : 19,022.34 = 8,766.84 : x
  2. Step 2: Convert to fraction form
    12,703.44/19,022.34 = 8,766.84/x
  3. Step 3: Cross multiply
    12,703.44x = 19,022.34 × 8,766.84
  4. Step 4: Simplify right side
    12,703.44x = 166,765,811.21
  5. Step 5: Solve for x
    x = 166,765,811.21/12,703.44
  6. Step 6: Final answer
    x = 13,127.61

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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.