Home / 13,370.21-18,451.32-7,704.52

Finding the Fourth Proportional to 13,370.21, 18,451.32 and 7,704.52

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Solution

The fourth proportional to 13,370.21, 18,451.32 and 7,704.52 is: 10,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.21 : 18,451.32 = 7,704.52 : x
  2. Step 2: Convert to fraction form
    13,370.21/18,451.32 = 7,704.52/x
  3. Step 3: Cross multiply
    13,370.21x = 18,451.32 × 7,704.52
  4. Step 4: Simplify right side
    13,370.21x = 142,158,563.97
  5. Step 5: Solve for x
    x = 142,158,563.97/13,370.21
  6. Step 6: Final answer
    x = 10,632.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.