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Finding the Fourth Proportional to 18,692.26, 27,998.19 and 8,816.74

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Solution

The fourth proportional to 18,692.26, 27,998.19 and 8,816.74 is: 13,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,692.26 : 27,998.19 = 8,816.74 : x
  2. Step 2: Convert to fraction form
    18,692.26/27,998.19 = 8,816.74/x
  3. Step 3: Cross multiply
    18,692.26x = 27,998.19 × 8,816.74
  4. Step 4: Simplify right side
    18,692.26x = 246,852,761.70
  5. Step 5: Solve for x
    x = 246,852,761.70/18,692.26
  6. Step 6: Final answer
    x = 13,206.15

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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.