Home / 13,191.55-19,788.36-3,831.73

Finding the Fourth Proportional to 13,191.55, 19,788.36 and 3,831.73

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Solution

The fourth proportional to 13,191.55, 19,788.36 and 3,831.73 is: 5,747.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.55 : 19,788.36 = 3,831.73 : x
  2. Step 2: Convert to fraction form
    13,191.55/19,788.36 = 3,831.73/x
  3. Step 3: Cross multiply
    13,191.55x = 19,788.36 × 3,831.73
  4. Step 4: Simplify right side
    13,191.55x = 75,823,610.38
  5. Step 5: Solve for x
    x = 75,823,610.38/13,191.55
  6. Step 6: Final answer
    x = 5,747.89

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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.