Home / 13,403.74-20,106.32-3,542.75

Finding the Fourth Proportional to 13,403.74, 20,106.32 and 3,542.75

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Solution

The fourth proportional to 13,403.74, 20,106.32 and 3,542.75 is: 5,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.74 : 20,106.32 = 3,542.75 : x
  2. Step 2: Convert to fraction form
    13,403.74/20,106.32 = 3,542.75/x
  3. Step 3: Cross multiply
    13,403.74x = 20,106.32 × 3,542.75
  4. Step 4: Simplify right side
    13,403.74x = 71,231,647.47
  5. Step 5: Solve for x
    x = 71,231,647.47/13,403.74
  6. Step 6: Final answer
    x = 5,314.31

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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.