Home / 8,148.75-11,245.41-4,422.75

Finding the Fourth Proportional to 8,148.75, 11,245.41 and 4,422.75

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Solution

The fourth proportional to 8,148.75, 11,245.41 and 4,422.75 is: 6,103.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.75 : 11,245.41 = 4,422.75 : x
  2. Step 2: Convert to fraction form
    8,148.75/11,245.41 = 4,422.75/x
  3. Step 3: Cross multiply
    8,148.75x = 11,245.41 × 4,422.75
  4. Step 4: Simplify right side
    8,148.75x = 49,735,637.08
  5. Step 5: Solve for x
    x = 49,735,637.08/8,148.75
  6. Step 6: Final answer
    x = 6,103.47

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Half scale
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Double scale
Find fourth proportional to 8,149.75, 11,246.79 and 4,423.75
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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.