Home / 13,257.21-19,885.36-3,396.59

Finding the Fourth Proportional to 13,257.21, 19,885.36 and 3,396.59

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Solution

The fourth proportional to 13,257.21, 19,885.36 and 3,396.59 is: 5,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.21 : 19,885.36 = 3,396.59 : x
  2. Step 2: Convert to fraction form
    13,257.21/19,885.36 = 3,396.59/x
  3. Step 3: Cross multiply
    13,257.21x = 19,885.36 × 3,396.59
  4. Step 4: Simplify right side
    13,257.21x = 67,542,414.92
  5. Step 5: Solve for x
    x = 67,542,414.92/13,257.21
  6. Step 6: Final answer
    x = 5,094.77

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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.