Home / 12,867.82-19,388.22-11,636.62

Finding the Fourth Proportional to 12,867.82, 19,388.22 and 11,636.62

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Solution

The fourth proportional to 12,867.82, 19,388.22 and 11,636.62 is: 17,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.82 : 19,388.22 = 11,636.62 : x
  2. Step 2: Convert to fraction form
    12,867.82/19,388.22 = 11,636.62/x
  3. Step 3: Cross multiply
    12,867.82x = 19,388.22 × 11,636.62
  4. Step 4: Simplify right side
    12,867.82x = 225,613,348.62
  5. Step 5: Solve for x
    x = 225,613,348.62/12,867.82
  6. Step 6: Final answer
    x = 17,533.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.