Home / 12,425.03-18,635.49-3,657.89

Finding the Fourth Proportional to 12,425.03, 18,635.49 and 3,657.89

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Solution

The fourth proportional to 12,425.03, 18,635.49 and 3,657.89 is: 5,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.03 : 18,635.49 = 3,657.89 : x
  2. Step 2: Convert to fraction form
    12,425.03/18,635.49 = 3,657.89/x
  3. Step 3: Cross multiply
    12,425.03x = 18,635.49 × 3,657.89
  4. Step 4: Simplify right side
    12,425.03x = 68,166,479.34
  5. Step 5: Solve for x
    x = 68,166,479.34/12,425.03
  6. Step 6: Final answer
    x = 5,486.22

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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.