Home / 13,519.53-20,279.34-4,159.49

Finding the Fourth Proportional to 13,519.53, 20,279.34 and 4,159.49

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Solution

The fourth proportional to 13,519.53, 20,279.34 and 4,159.49 is: 6,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.53 : 20,279.34 = 4,159.49 : x
  2. Step 2: Convert to fraction form
    13,519.53/20,279.34 = 4,159.49/x
  3. Step 3: Cross multiply
    13,519.53x = 20,279.34 × 4,159.49
  4. Step 4: Simplify right side
    13,519.53x = 84,351,610.54
  5. Step 5: Solve for x
    x = 84,351,610.54/13,519.53
  6. Step 6: Final answer
    x = 6,239.24

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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.