Home / 13,131.45-19,692.63-3,768.93

Finding the Fourth Proportional to 13,131.45, 19,692.63 and 3,768.93

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Solution

The fourth proportional to 13,131.45, 19,692.63 and 3,768.93 is: 5,652.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131.45 : 19,692.63 = 3,768.93 : x
  2. Step 2: Convert to fraction form
    13,131.45/19,692.63 = 3,768.93/x
  3. Step 3: Cross multiply
    13,131.45x = 19,692.63 × 3,768.93
  4. Step 4: Simplify right side
    13,131.45x = 74,220,143.99
  5. Step 5: Solve for x
    x = 74,220,143.99/13,131.45
  6. Step 6: Final answer
    x = 5,652.09

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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.