Home / 18,296.78-27,454.37-7,211.42

Finding the Fourth Proportional to 18,296.78, 27,454.37 and 7,211.42

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Solution

The fourth proportional to 18,296.78, 27,454.37 and 7,211.42 is: 10,820.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.78 : 27,454.37 = 7,211.42 : x
  2. Step 2: Convert to fraction form
    18,296.78/27,454.37 = 7,211.42/x
  3. Step 3: Cross multiply
    18,296.78x = 27,454.37 × 7,211.42
  4. Step 4: Simplify right side
    18,296.78x = 197,984,819.58
  5. Step 5: Solve for x
    x = 197,984,819.58/18,296.78
  6. Step 6: Final answer
    x = 10,820.75

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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.