Home / 13,383.60-20,075.33-3,388.44

Finding the Fourth Proportional to 13,383.60, 20,075.33 and 3,388.44

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Solution

The fourth proportional to 13,383.60, 20,075.33 and 3,388.44 is: 5,082.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,383.60 : 20,075.33 = 3,388.44 : x
  2. Step 2: Convert to fraction form
    13,383.60/20,075.33 = 3,388.44/x
  3. Step 3: Cross multiply
    13,383.60x = 20,075.33 × 3,388.44
  4. Step 4: Simplify right side
    13,383.60x = 68,024,051.19
  5. Step 5: Solve for x
    x = 68,024,051.19/13,383.60
  6. Step 6: Final answer
    x = 5,082.64

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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.