Home / 12,408.22-17,118.03-7,625.58

Finding the Fourth Proportional to 12,408.22, 17,118.03 and 7,625.58

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Solution

The fourth proportional to 12,408.22, 17,118.03 and 7,625.58 is: 10,520.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.22 : 17,118.03 = 7,625.58 : x
  2. Step 2: Convert to fraction form
    12,408.22/17,118.03 = 7,625.58/x
  3. Step 3: Cross multiply
    12,408.22x = 17,118.03 × 7,625.58
  4. Step 4: Simplify right side
    12,408.22x = 130,534,907.21
  5. Step 5: Solve for x
    x = 130,534,907.21/12,408.22
  6. Step 6: Final answer
    x = 10,520.03

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1.5x scale

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.