Home / 13,790.55-20,683.26-4,430.73

Finding the Fourth Proportional to 13,790.55, 20,683.26 and 4,430.73

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Solution

The fourth proportional to 13,790.55, 20,683.26 and 4,430.73 is: 6,645.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.55 : 20,683.26 = 4,430.73 : x
  2. Step 2: Convert to fraction form
    13,790.55/20,683.26 = 4,430.73/x
  3. Step 3: Cross multiply
    13,790.55x = 20,683.26 × 4,430.73
  4. Step 4: Simplify right side
    13,790.55x = 91,641,940.58
  5. Step 5: Solve for x
    x = 91,641,940.58/13,790.55
  6. Step 6: Final answer
    x = 6,645.27

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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.