Home / 13,231.22-19,848-4,911.33

Finding the Fourth Proportional to 13,231.22, 19,848 and 4,911.33

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Solution

The fourth proportional to 13,231.22, 19,848 and 4,911.33 is: 7,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.22 : 19,848 = 4,911.33 : x
  2. Step 2: Convert to fraction form
    13,231.22/19,848 = 4,911.33/x
  3. Step 3: Cross multiply
    13,231.22x = 19,848 × 4,911.33
  4. Step 4: Simplify right side
    13,231.22x = 97,480,077.84
  5. Step 5: Solve for x
    x = 97,480,077.84/13,231.22
  6. Step 6: Final answer
    x = 7,367.43

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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.