Home / 13,257.35-19,885.96-3,396.61

Finding the Fourth Proportional to 13,257.35, 19,885.96 and 3,396.61

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Solution

The fourth proportional to 13,257.35, 19,885.96 and 3,396.61 is: 5,094.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.35 : 19,885.96 = 3,396.61 : x
  2. Step 2: Convert to fraction form
    13,257.35/19,885.96 = 3,396.61/x
  3. Step 3: Cross multiply
    13,257.35x = 19,885.96 × 3,396.61
  4. Step 4: Simplify right side
    13,257.35x = 67,544,734.18
  5. Step 5: Solve for x
    x = 67,544,734.18/13,257.35
  6. Step 6: Final answer
    x = 5,094.89

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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.