Home / 13,831.62-20,732.04-7,258.56

Finding the Fourth Proportional to 13,831.62, 20,732.04 and 7,258.56

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Solution

The fourth proportional to 13,831.62, 20,732.04 and 7,258.56 is: 10,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,831.62 : 20,732.04 = 7,258.56 : x
  2. Step 2: Convert to fraction form
    13,831.62/20,732.04 = 7,258.56/x
  3. Step 3: Cross multiply
    13,831.62x = 20,732.04 × 7,258.56
  4. Step 4: Simplify right side
    13,831.62x = 150,484,756.26
  5. Step 5: Solve for x
    x = 150,484,756.26/13,831.62
  6. Step 6: Final answer
    x = 10,879.76

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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.