Home / 12,201.03-18,302.79-3,316.50

Finding the Fourth Proportional to 12,201.03, 18,302.79 and 3,316.50

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Solution

The fourth proportional to 12,201.03, 18,302.79 and 3,316.50 is: 4,975.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.03 : 18,302.79 = 3,316.50 : x
  2. Step 2: Convert to fraction form
    12,201.03/18,302.79 = 3,316.50/x
  3. Step 3: Cross multiply
    12,201.03x = 18,302.79 × 3,316.50
  4. Step 4: Simplify right side
    12,201.03x = 60,701,203.04
  5. Step 5: Solve for x
    x = 60,701,203.04/12,201.03
  6. Step 6: Final answer
    x = 4,975.09

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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.