Home / 12,774.26-19,164.27-3,890.39

Finding the Fourth Proportional to 12,774.26, 19,164.27 and 3,890.39

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Solution

The fourth proportional to 12,774.26, 19,164.27 and 3,890.39 is: 5,836.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,774.26 : 19,164.27 = 3,890.39 : x
  2. Step 2: Convert to fraction form
    12,774.26/19,164.27 = 3,890.39/x
  3. Step 3: Cross multiply
    12,774.26x = 19,164.27 × 3,890.39
  4. Step 4: Simplify right side
    12,774.26x = 74,556,388.54
  5. Step 5: Solve for x
    x = 74,556,388.54/12,774.26
  6. Step 6: Final answer
    x = 5,836.45

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Similar ratio
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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.