Home / 11,420.69-17,131.74-4,400.73

Finding the Fourth Proportional to 11,420.69, 17,131.74 and 4,400.73

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Solution

The fourth proportional to 11,420.69, 17,131.74 and 4,400.73 is: 6,601.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.69 : 17,131.74 = 4,400.73 : x
  2. Step 2: Convert to fraction form
    11,420.69/17,131.74 = 4,400.73/x
  3. Step 3: Cross multiply
    11,420.69x = 17,131.74 × 4,400.73
  4. Step 4: Simplify right side
    11,420.69x = 75,392,162.17
  5. Step 5: Solve for x
    x = 75,392,162.17/11,420.69
  6. Step 6: Final answer
    x = 6,601.37

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Double scale
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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.