Home / 12,442.85-18,666.11-3,676.62

Finding the Fourth Proportional to 12,442.85, 18,666.11 and 3,676.62

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Solution

The fourth proportional to 12,442.85, 18,666.11 and 3,676.62 is: 5,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.85 : 18,666.11 = 3,676.62 : x
  2. Step 2: Convert to fraction form
    12,442.85/18,666.11 = 3,676.62/x
  3. Step 3: Cross multiply
    12,442.85x = 18,666.11 × 3,676.62
  4. Step 4: Simplify right side
    12,442.85x = 68,628,193.35
  5. Step 5: Solve for x
    x = 68,628,193.35/12,442.85
  6. Step 6: Final answer
    x = 5,515.47

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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.