Home / 13,128.35-19,692.27-3,768.41

Finding the Fourth Proportional to 13,128.35, 19,692.27 and 3,768.41

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Solution

The fourth proportional to 13,128.35, 19,692.27 and 3,768.41 is: 5,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.35 : 19,692.27 = 3,768.41 : x
  2. Step 2: Convert to fraction form
    13,128.35/19,692.27 = 3,768.41/x
  3. Step 3: Cross multiply
    13,128.35x = 19,692.27 × 3,768.41
  4. Step 4: Simplify right side
    13,128.35x = 74,208,596.42
  5. Step 5: Solve for x
    x = 74,208,596.42/13,128.35
  6. Step 6: Final answer
    x = 5,652.55

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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.