Home / 18,831.54-28,229.29-6,982.12

Finding the Fourth Proportional to 18,831.54, 28,229.29 and 6,982.12

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Solution

The fourth proportional to 18,831.54, 28,229.29 and 6,982.12 is: 10,466.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.54 : 28,229.29 = 6,982.12 : x
  2. Step 2: Convert to fraction form
    18,831.54/28,229.29 = 6,982.12/x
  3. Step 3: Cross multiply
    18,831.54x = 28,229.29 × 6,982.12
  4. Step 4: Simplify right side
    18,831.54x = 197,100,290.29
  5. Step 5: Solve for x
    x = 197,100,290.29/18,831.54
  6. Step 6: Final answer
    x = 10,466.50

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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.