Home / 12,694.19-17,515.54-8,217.32

Finding the Fourth Proportional to 12,694.19, 17,515.54 and 8,217.32

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Solution

The fourth proportional to 12,694.19, 17,515.54 and 8,217.32 is: 11,338.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.19 : 17,515.54 = 8,217.32 : x
  2. Step 2: Convert to fraction form
    12,694.19/17,515.54 = 8,217.32/x
  3. Step 3: Cross multiply
    12,694.19x = 17,515.54 × 8,217.32
  4. Step 4: Simplify right side
    12,694.19x = 143,930,797.15
  5. Step 5: Solve for x
    x = 143,930,797.15/12,694.19
  6. Step 6: Final answer
    x = 11,338.32

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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.