Home / 13,615.94-20,424.58-3,755

Finding the Fourth Proportional to 13,615.94, 20,424.58 and 3,755

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Solution

The fourth proportional to 13,615.94, 20,424.58 and 3,755 is: 5,632.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.94 : 20,424.58 = 3,755 : x
  2. Step 2: Convert to fraction form
    13,615.94/20,424.58 = 3,755/x
  3. Step 3: Cross multiply
    13,615.94x = 20,424.58 × 3,755
  4. Step 4: Simplify right side
    13,615.94x = 76,694,297.90
  5. Step 5: Solve for x
    x = 76,694,297.90/13,615.94
  6. Step 6: Final answer
    x = 5,632.68

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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.