Home / 13,713.42-20,568.53-3,853.55

Finding the Fourth Proportional to 13,713.42, 20,568.53 and 3,853.55

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Solution

The fourth proportional to 13,713.42, 20,568.53 and 3,853.55 is: 5,779.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.42 : 20,568.53 = 3,853.55 : x
  2. Step 2: Convert to fraction form
    13,713.42/20,568.53 = 3,853.55/x
  3. Step 3: Cross multiply
    13,713.42x = 20,568.53 × 3,853.55
  4. Step 4: Simplify right side
    13,713.42x = 79,261,736.67
  5. Step 5: Solve for x
    x = 79,261,736.67/13,713.42
  6. Step 6: Final answer
    x = 5,779.87

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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.