Home / 12,202.25-18,305.87-6,939.68

Finding the Fourth Proportional to 12,202.25, 18,305.87 and 6,939.68

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Solution

The fourth proportional to 12,202.25, 18,305.87 and 6,939.68 is: 10,410.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.25 : 18,305.87 = 6,939.68 : x
  2. Step 2: Convert to fraction form
    12,202.25/18,305.87 = 6,939.68/x
  3. Step 3: Cross multiply
    12,202.25x = 18,305.87 × 6,939.68
  4. Step 4: Simplify right side
    12,202.25x = 127,036,753.69
  5. Step 5: Solve for x
    x = 127,036,753.69/12,202.25
  6. Step 6: Final answer
    x = 10,410.93

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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.