Home / 13,375.53-20,063.40-3,514.79

Finding the Fourth Proportional to 13,375.53, 20,063.40 and 3,514.79

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Solution

The fourth proportional to 13,375.53, 20,063.40 and 3,514.79 is: 5,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.53 : 20,063.40 = 3,514.79 : x
  2. Step 2: Convert to fraction form
    13,375.53/20,063.40 = 3,514.79/x
  3. Step 3: Cross multiply
    13,375.53x = 20,063.40 × 3,514.79
  4. Step 4: Simplify right side
    13,375.53x = 70,518,620.11
  5. Step 5: Solve for x
    x = 70,518,620.11/13,375.53
  6. Step 6: Final answer
    x = 5,272.21

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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.