Home / 13,193.57-19,785.56-3,831.05

Finding the Fourth Proportional to 13,193.57, 19,785.56 and 3,831.05

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Solution

The fourth proportional to 13,193.57, 19,785.56 and 3,831.05 is: 5,745.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.57 : 19,785.56 = 3,831.05 : x
  2. Step 2: Convert to fraction form
    13,193.57/19,785.56 = 3,831.05/x
  3. Step 3: Cross multiply
    13,193.57x = 19,785.56 × 3,831.05
  4. Step 4: Simplify right side
    13,193.57x = 75,799,351.55
  5. Step 5: Solve for x
    x = 75,799,351.55/13,193.57
  6. Step 6: Final answer
    x = 5,745.18

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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.