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Finding the Fourth Proportional to 12,634.70, 17,435.86 and 6,969.82

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Solution

The fourth proportional to 12,634.70, 17,435.86 and 6,969.82 is: 9,618.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.70 : 17,435.86 = 6,969.82 : x
  2. Step 2: Convert to fraction form
    12,634.70/17,435.86 = 6,969.82/x
  3. Step 3: Cross multiply
    12,634.70x = 17,435.86 × 6,969.82
  4. Step 4: Simplify right side
    12,634.70x = 121,524,805.75
  5. Step 5: Solve for x
    x = 121,524,805.75/12,634.70
  6. Step 6: Final answer
    x = 9,618.34

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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.