Home / 18,685.59-28,028.07-8,831.94

Finding the Fourth Proportional to 18,685.59, 28,028.07 and 8,831.94

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Solution

The fourth proportional to 18,685.59, 28,028.07 and 8,831.94 is: 13,247.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.59 : 28,028.07 = 8,831.94 : x
  2. Step 2: Convert to fraction form
    18,685.59/28,028.07 = 8,831.94/x
  3. Step 3: Cross multiply
    18,685.59x = 28,028.07 × 8,831.94
  4. Step 4: Simplify right side
    18,685.59x = 247,542,232.56
  5. Step 5: Solve for x
    x = 247,542,232.56/18,685.59
  6. Step 6: Final answer
    x = 13,247.76

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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.