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Finding the Fourth Proportional to 12,577.97, 18,866.96 and 12,371.12

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Solution

The fourth proportional to 12,577.97, 18,866.96 and 12,371.12 is: 18,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.97 : 18,866.96 = 12,371.12 : x
  2. Step 2: Convert to fraction form
    12,577.97/18,866.96 = 12,371.12/x
  3. Step 3: Cross multiply
    12,577.97x = 18,866.96 × 12,371.12
  4. Step 4: Simplify right side
    12,577.97x = 233,405,270.00
  5. Step 5: Solve for x
    x = 233,405,270.00/12,577.97
  6. Step 6: Final answer
    x = 18,556.68

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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.