Home / 12,013.82-16,578.75-6,636.67

Finding the Fourth Proportional to 12,013.82, 16,578.75 and 6,636.67

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Solution

The fourth proportional to 12,013.82, 16,578.75 and 6,636.67 is: 9,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.82 : 16,578.75 = 6,636.67 : x
  2. Step 2: Convert to fraction form
    12,013.82/16,578.75 = 6,636.67/x
  3. Step 3: Cross multiply
    12,013.82x = 16,578.75 × 6,636.67
  4. Step 4: Simplify right side
    12,013.82x = 110,027,609.87
  5. Step 5: Solve for x
    x = 110,027,609.87/12,013.82
  6. Step 6: Final answer
    x = 9,158.42

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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.