Home / 13,168.09-19,749.21-3,806.07

Finding the Fourth Proportional to 13,168.09, 19,749.21 and 3,806.07

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Solution

The fourth proportional to 13,168.09, 19,749.21 and 3,806.07 is: 5,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168.09 : 19,749.21 = 3,806.07 : x
  2. Step 2: Convert to fraction form
    13,168.09/19,749.21 = 3,806.07/x
  3. Step 3: Cross multiply
    13,168.09x = 19,749.21 × 3,806.07
  4. Step 4: Simplify right side
    13,168.09x = 75,166,875.70
  5. Step 5: Solve for x
    x = 75,166,875.70/13,168.09
  6. Step 6: Final answer
    x = 5,708.26

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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.