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Finding the Fourth Proportional to 12,552.78, 17,322.84 and 6,963.78

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Solution

The fourth proportional to 12,552.78, 17,322.84 and 6,963.78 is: 9,610.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,552.78 : 17,322.84 = 6,963.78 : x
  2. Step 2: Convert to fraction form
    12,552.78/17,322.84 = 6,963.78/x
  3. Step 3: Cross multiply
    12,552.78x = 17,322.84 × 6,963.78
  4. Step 4: Simplify right side
    12,552.78x = 120,632,446.74
  5. Step 5: Solve for x
    x = 120,632,446.74/12,552.78
  6. Step 6: Final answer
    x = 9,610.02

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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.