Home / 20,766.26-28,654.06-12,267.21

Finding the Fourth Proportional to 20,766.26, 28,654.06 and 12,267.21

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Solution

The fourth proportional to 20,766.26, 28,654.06 and 12,267.21 is: 16,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,766.26 : 28,654.06 = 12,267.21 : x
  2. Step 2: Convert to fraction form
    20,766.26/28,654.06 = 12,267.21/x
  3. Step 3: Cross multiply
    20,766.26x = 28,654.06 × 12,267.21
  4. Step 4: Simplify right side
    20,766.26x = 351,505,371.37
  5. Step 5: Solve for x
    x = 351,505,371.37/20,766.26
  6. Step 6: Final answer
    x = 16,926.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.