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Finding the Fourth Proportional to 12,966.73, 19,401.02 and 7,704.56

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Solution

The fourth proportional to 12,966.73, 19,401.02 and 7,704.56 is: 11,527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.73 : 19,401.02 = 7,704.56 : x
  2. Step 2: Convert to fraction form
    12,966.73/19,401.02 = 7,704.56/x
  3. Step 3: Cross multiply
    12,966.73x = 19,401.02 × 7,704.56
  4. Step 4: Simplify right side
    12,966.73x = 149,476,284.13
  5. Step 5: Solve for x
    x = 149,476,284.13/12,966.73
  6. Step 6: Final answer
    x = 11,527.68

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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.