Home / 13,138.41-19,707.60-3,904.41

Finding the Fourth Proportional to 13,138.41, 19,707.60 and 3,904.41

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Solution

The fourth proportional to 13,138.41, 19,707.60 and 3,904.41 is: 5,856.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138.41 : 19,707.60 = 3,904.41 : x
  2. Step 2: Convert to fraction form
    13,138.41/19,707.60 = 3,904.41/x
  3. Step 3: Cross multiply
    13,138.41x = 19,707.60 × 3,904.41
  4. Step 4: Simplify right side
    13,138.41x = 76,946,550.52
  5. Step 5: Solve for x
    x = 76,946,550.52/13,138.41
  6. Step 6: Final answer
    x = 5,856.61

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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.