Home / 13,380.12-20,074.23-4,494.42

Finding the Fourth Proportional to 13,380.12, 20,074.23 and 4,494.42

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Solution

The fourth proportional to 13,380.12, 20,074.23 and 4,494.42 is: 6,742.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.12 : 20,074.23 = 4,494.42 : x
  2. Step 2: Convert to fraction form
    13,380.12/20,074.23 = 4,494.42/x
  3. Step 3: Cross multiply
    13,380.12x = 20,074.23 × 4,494.42
  4. Step 4: Simplify right side
    13,380.12x = 90,222,020.80
  5. Step 5: Solve for x
    x = 90,222,020.80/13,380.12
  6. Step 6: Final answer
    x = 6,742.99

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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.