Home / 12,731.72-19,099.40-3,967.34

Finding the Fourth Proportional to 12,731.72, 19,099.40 and 3,967.34

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Solution

The fourth proportional to 12,731.72, 19,099.40 and 3,967.34 is: 5,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.72 : 19,099.40 = 3,967.34 : x
  2. Step 2: Convert to fraction form
    12,731.72/19,099.40 = 3,967.34/x
  3. Step 3: Cross multiply
    12,731.72x = 19,099.40 × 3,967.34
  4. Step 4: Simplify right side
    12,731.72x = 75,773,698.26
  5. Step 5: Solve for x
    x = 75,773,698.26/12,731.72
  6. Step 6: Final answer
    x = 5,951.57

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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.