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Finding the Fourth Proportional to 12,069.54, 18,104.22 and 7,935.66

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Solution

The fourth proportional to 12,069.54, 18,104.22 and 7,935.66 is: 11,903.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.54 : 18,104.22 = 7,935.66 : x
  2. Step 2: Convert to fraction form
    12,069.54/18,104.22 = 7,935.66/x
  3. Step 3: Cross multiply
    12,069.54x = 18,104.22 × 7,935.66
  4. Step 4: Simplify right side
    12,069.54x = 143,668,934.49
  5. Step 5: Solve for x
    x = 143,668,934.49/12,069.54
  6. Step 6: Final answer
    x = 11,903.43

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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.