Home / 13,958.76-20,940.42-4,098.36

Finding the Fourth Proportional to 13,958.76, 20,940.42 and 4,098.36

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Solution

The fourth proportional to 13,958.76, 20,940.42 and 4,098.36 is: 6,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.76 : 20,940.42 = 4,098.36 : x
  2. Step 2: Convert to fraction form
    13,958.76/20,940.42 = 4,098.36/x
  3. Step 3: Cross multiply
    13,958.76x = 20,940.42 × 4,098.36
  4. Step 4: Simplify right side
    13,958.76x = 85,821,379.71
  5. Step 5: Solve for x
    x = 85,821,379.71/13,958.76
  6. Step 6: Final answer
    x = 6,148.21

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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.