Home / 12,863.76-19,295.59-8,449.28

Finding the Fourth Proportional to 12,863.76, 19,295.59 and 8,449.28

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Solution

The fourth proportional to 12,863.76, 19,295.59 and 8,449.28 is: 12,673.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.76 : 19,295.59 = 8,449.28 : x
  2. Step 2: Convert to fraction form
    12,863.76/19,295.59 = 8,449.28/x
  3. Step 3: Cross multiply
    12,863.76x = 19,295.59 × 8,449.28
  4. Step 4: Simplify right side
    12,863.76x = 163,033,842.68
  5. Step 5: Solve for x
    x = 163,033,842.68/12,863.76
  6. Step 6: Final answer
    x = 12,673.89

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.