Home / 12,846.90-19,233.90-9,906.60

Finding the Fourth Proportional to 12,846.90, 19,233.90 and 9,906.60

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Solution

The fourth proportional to 12,846.90, 19,233.90 and 9,906.60 is: 14,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846.90 : 19,233.90 = 9,906.60 : x
  2. Step 2: Convert to fraction form
    12,846.90/19,233.90 = 9,906.60/x
  3. Step 3: Cross multiply
    12,846.90x = 19,233.90 × 9,906.60
  4. Step 4: Simplify right side
    12,846.90x = 190,542,553.74
  5. Step 5: Solve for x
    x = 190,542,553.74/12,846.90
  6. Step 6: Final answer
    x = 14,831.79

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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.