Home / 7,676.98-11,515.77-3,291.44

Finding the Fourth Proportional to 7,676.98, 11,515.77 and 3,291.44

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Solution

The fourth proportional to 7,676.98, 11,515.77 and 3,291.44 is: 4,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.98 : 11,515.77 = 3,291.44 : x
  2. Step 2: Convert to fraction form
    7,676.98/11,515.77 = 3,291.44/x
  3. Step 3: Cross multiply
    7,676.98x = 11,515.77 × 3,291.44
  4. Step 4: Simplify right side
    7,676.98x = 37,903,408.43
  5. Step 5: Solve for x
    x = 37,903,408.43/7,676.98
  6. Step 6: Final answer
    x = 4,937.28

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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.