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Finding the Fourth Proportional to 12,668.73, 17,473.15 and 7,627.69

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Solution

The fourth proportional to 12,668.73, 17,473.15 and 7,627.69 is: 10,520.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.73 : 17,473.15 = 7,627.69 : x
  2. Step 2: Convert to fraction form
    12,668.73/17,473.15 = 7,627.69/x
  3. Step 3: Cross multiply
    12,668.73x = 17,473.15 × 7,627.69
  4. Step 4: Simplify right side
    12,668.73x = 133,279,771.52
  5. Step 5: Solve for x
    x = 133,279,771.52/12,668.73
  6. Step 6: Final answer
    x = 10,520.37

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Double scale
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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.