Home / 12,040.14-18,016.44-9,940.62

Finding the Fourth Proportional to 12,040.14, 18,016.44 and 9,940.62

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Solution

The fourth proportional to 12,040.14, 18,016.44 and 9,940.62 is: 14,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.14 : 18,016.44 = 9,940.62 : x
  2. Step 2: Convert to fraction form
    12,040.14/18,016.44 = 9,940.62/x
  3. Step 3: Cross multiply
    12,040.14x = 18,016.44 × 9,940.62
  4. Step 4: Simplify right side
    12,040.14x = 179,094,583.79
  5. Step 5: Solve for x
    x = 179,094,583.79/12,040.14
  6. Step 6: Final answer
    x = 14,874.79

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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.