Home / 18,831.33-25,987.38-10,447.83

Finding the Fourth Proportional to 18,831.33, 25,987.38 and 10,447.83

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Solution

The fourth proportional to 18,831.33, 25,987.38 and 10,447.83 is: 14,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.33 : 25,987.38 = 10,447.83 : x
  2. Step 2: Convert to fraction form
    18,831.33/25,987.38 = 10,447.83/x
  3. Step 3: Cross multiply
    18,831.33x = 25,987.38 × 10,447.83
  4. Step 4: Simplify right side
    18,831.33x = 271,511,728.39
  5. Step 5: Solve for x
    x = 271,511,728.39/18,831.33
  6. Step 6: Final answer
    x = 14,418.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.