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Finding the Fourth Proportional to 12,555, 17,326.44 and 6,966

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Solution

The fourth proportional to 12,555, 17,326.44 and 6,966 is: 9,613.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555 : 17,326.44 = 6,966 : x
  2. Step 2: Convert to fraction form
    12,555/17,326.44 = 6,966/x
  3. Step 3: Cross multiply
    12,555x = 17,326.44 × 6,966
  4. Step 4: Simplify right side
    12,555x = 120,695,981.04
  5. Step 5: Solve for x
    x = 120,695,981.04/12,555
  6. Step 6: Final answer
    x = 9,613.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.