Home / 13,408.47-20,102.21-8,467.74

Finding the Fourth Proportional to 13,408.47, 20,102.21 and 8,467.74

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Solution

The fourth proportional to 13,408.47, 20,102.21 and 8,467.74 is: 12,694.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.47 : 20,102.21 = 8,467.74 : x
  2. Step 2: Convert to fraction form
    13,408.47/20,102.21 = 8,467.74/x
  3. Step 3: Cross multiply
    13,408.47x = 20,102.21 × 8,467.74
  4. Step 4: Simplify right side
    13,408.47x = 170,220,245.37
  5. Step 5: Solve for x
    x = 170,220,245.37/13,408.47
  6. Step 6: Final answer
    x = 12,694.98

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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.