Home / 13,763.75-20,638.33-5,443.43

Finding the Fourth Proportional to 13,763.75, 20,638.33 and 5,443.43

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Solution

The fourth proportional to 13,763.75, 20,638.33 and 5,443.43 is: 8,162.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.75 : 20,638.33 = 5,443.43 : x
  2. Step 2: Convert to fraction form
    13,763.75/20,638.33 = 5,443.43/x
  3. Step 3: Cross multiply
    13,763.75x = 20,638.33 × 5,443.43
  4. Step 4: Simplify right side
    13,763.75x = 112,343,285.68
  5. Step 5: Solve for x
    x = 112,343,285.68/13,763.75
  6. Step 6: Final answer
    x = 8,162.26

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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.