Home / 12,628.56-17,427.32-6,963.12

Finding the Fourth Proportional to 12,628.56, 17,427.32 and 6,963.12

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Solution

The fourth proportional to 12,628.56, 17,427.32 and 6,963.12 is: 9,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.56 : 17,427.32 = 6,963.12 : x
  2. Step 2: Convert to fraction form
    12,628.56/17,427.32 = 6,963.12/x
  3. Step 3: Cross multiply
    12,628.56x = 17,427.32 × 6,963.12
  4. Step 4: Simplify right side
    12,628.56x = 121,348,520.44
  5. Step 5: Solve for x
    x = 121,348,520.44/12,628.56
  6. Step 6: Final answer
    x = 9,609.05

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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.