Home / 13,408.24-20,106.12-7,863.28

Finding the Fourth Proportional to 13,408.24, 20,106.12 and 7,863.28

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Solution

The fourth proportional to 13,408.24, 20,106.12 and 7,863.28 is: 11,791.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.24 : 20,106.12 = 7,863.28 : x
  2. Step 2: Convert to fraction form
    13,408.24/20,106.12 = 7,863.28/x
  3. Step 3: Cross multiply
    13,408.24x = 20,106.12 × 7,863.28
  4. Step 4: Simplify right side
    13,408.24x = 158,100,051.27
  5. Step 5: Solve for x
    x = 158,100,051.27/13,408.24
  6. Step 6: Final answer
    x = 11,791.26

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1.5x scale

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.