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Finding the Fourth Proportional to 12,694.78, 19,055.76 and 10,744.25

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Solution

The fourth proportional to 12,694.78, 19,055.76 and 10,744.25 is: 16,127.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.78 : 19,055.76 = 10,744.25 : x
  2. Step 2: Convert to fraction form
    12,694.78/19,055.76 = 10,744.25/x
  3. Step 3: Cross multiply
    12,694.78x = 19,055.76 × 10,744.25
  4. Step 4: Simplify right side
    12,694.78x = 204,739,713.81
  5. Step 5: Solve for x
    x = 204,739,713.81/12,694.78
  6. Step 6: Final answer
    x = 16,127.87

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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.