Home / 12,012.21-18,020.04-3,692.92

Finding the Fourth Proportional to 12,012.21, 18,020.04 and 3,692.92

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Solution

The fourth proportional to 12,012.21, 18,020.04 and 3,692.92 is: 5,539.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.21 : 18,020.04 = 3,692.92 : x
  2. Step 2: Convert to fraction form
    12,012.21/18,020.04 = 3,692.92/x
  3. Step 3: Cross multiply
    12,012.21x = 18,020.04 × 3,692.92
  4. Step 4: Simplify right side
    12,012.21x = 66,546,597.32
  5. Step 5: Solve for x
    x = 66,546,597.32/12,012.21
  6. Step 6: Final answer
    x = 5,539.91

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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.