Home / 15,396.82-21,245.99-8,683.47

Finding the Fourth Proportional to 15,396.82, 21,245.99 and 8,683.47

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Solution

The fourth proportional to 15,396.82, 21,245.99 and 8,683.47 is: 11,982.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,396.82 : 21,245.99 = 8,683.47 : x
  2. Step 2: Convert to fraction form
    15,396.82/21,245.99 = 8,683.47/x
  3. Step 3: Cross multiply
    15,396.82x = 21,245.99 × 8,683.47
  4. Step 4: Simplify right side
    15,396.82x = 184,488,873.37
  5. Step 5: Solve for x
    x = 184,488,873.37/15,396.82
  6. Step 6: Final answer
    x = 11,982.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.