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Finding the Fourth Proportional to 12,344.88, 18,505.02 and 7,965.41

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Solution

The fourth proportional to 12,344.88, 18,505.02 and 7,965.41 is: 11,940.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.88 : 18,505.02 = 7,965.41 : x
  2. Step 2: Convert to fraction form
    12,344.88/18,505.02 = 7,965.41/x
  3. Step 3: Cross multiply
    12,344.88x = 18,505.02 × 7,965.41
  4. Step 4: Simplify right side
    12,344.88x = 147,400,071.36
  5. Step 5: Solve for x
    x = 147,400,071.36/12,344.88
  6. Step 6: Final answer
    x = 11,940.18

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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.