Home / 13,311.36-19,966.68-3,450.60

Finding the Fourth Proportional to 13,311.36, 19,966.68 and 3,450.60

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Solution

The fourth proportional to 13,311.36, 19,966.68 and 3,450.60 is: 5,175.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.36 : 19,966.68 = 3,450.60 : x
  2. Step 2: Convert to fraction form
    13,311.36/19,966.68 = 3,450.60/x
  3. Step 3: Cross multiply
    13,311.36x = 19,966.68 × 3,450.60
  4. Step 4: Simplify right side
    13,311.36x = 68,897,026.01
  5. Step 5: Solve for x
    x = 68,897,026.01/13,311.36
  6. Step 6: Final answer
    x = 5,175.81

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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.