Home / 12,201.67-18,302.38-6,280.21

Finding the Fourth Proportional to 12,201.67, 18,302.38 and 6,280.21

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Solution

The fourth proportional to 12,201.67, 18,302.38 and 6,280.21 is: 9,420.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.67 : 18,302.38 = 6,280.21 : x
  2. Step 2: Convert to fraction form
    12,201.67/18,302.38 = 6,280.21/x
  3. Step 3: Cross multiply
    12,201.67x = 18,302.38 × 6,280.21
  4. Step 4: Simplify right side
    12,201.67x = 114,942,789.90
  5. Step 5: Solve for x
    x = 114,942,789.90/12,201.67
  6. Step 6: Final answer
    x = 9,420.25

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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.