Home / 13,907.54-20,861.40-3,519.26

Finding the Fourth Proportional to 13,907.54, 20,861.40 and 3,519.26

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Solution

The fourth proportional to 13,907.54, 20,861.40 and 3,519.26 is: 5,278.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.54 : 20,861.40 = 3,519.26 : x
  2. Step 2: Convert to fraction form
    13,907.54/20,861.40 = 3,519.26/x
  3. Step 3: Cross multiply
    13,907.54x = 20,861.40 × 3,519.26
  4. Step 4: Simplify right side
    13,907.54x = 73,416,690.56
  5. Step 5: Solve for x
    x = 73,416,690.56/13,907.54
  6. Step 6: Final answer
    x = 5,278.91

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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.