Home / 13,403.56-20,106.31-3,542.62

Finding the Fourth Proportional to 13,403.56, 20,106.31 and 3,542.62

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Solution

The fourth proportional to 13,403.56, 20,106.31 and 3,542.62 is: 5,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.56 : 20,106.31 = 3,542.62 : x
  2. Step 2: Convert to fraction form
    13,403.56/20,106.31 = 3,542.62/x
  3. Step 3: Cross multiply
    13,403.56x = 20,106.31 × 3,542.62
  4. Step 4: Simplify right side
    13,403.56x = 71,229,015.93
  5. Step 5: Solve for x
    x = 71,229,015.93/13,403.56
  6. Step 6: Final answer
    x = 5,314.19

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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.