Home / 13,519.83-20,279.66-3,659.07

Finding the Fourth Proportional to 13,519.83, 20,279.66 and 3,659.07

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Solution

The fourth proportional to 13,519.83, 20,279.66 and 3,659.07 is: 5,488.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.83 : 20,279.66 = 3,659.07 : x
  2. Step 2: Convert to fraction form
    13,519.83/20,279.66 = 3,659.07/x
  3. Step 3: Cross multiply
    13,519.83x = 20,279.66 × 3,659.07
  4. Step 4: Simplify right side
    13,519.83x = 74,204,677.22
  5. Step 5: Solve for x
    x = 74,204,677.22/13,519.83
  6. Step 6: Final answer
    x = 5,488.58

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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.