Home / 8,182.72-11,292.28-4,456.72

Finding the Fourth Proportional to 8,182.72, 11,292.28 and 4,456.72

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Solution

The fourth proportional to 8,182.72, 11,292.28 and 4,456.72 is: 6,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,182.72 : 11,292.28 = 4,456.72 : x
  2. Step 2: Convert to fraction form
    8,182.72/11,292.28 = 4,456.72/x
  3. Step 3: Cross multiply
    8,182.72x = 11,292.28 × 4,456.72
  4. Step 4: Simplify right side
    8,182.72x = 50,326,530.12
  5. Step 5: Solve for x
    x = 50,326,530.12/8,182.72
  6. Step 6: Final answer
    x = 6,150.34

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Half scale
Find fourth proportional to 16,365.44, 22,584.56 and 8,913.44
Double scale
Find fourth proportional to 8,183.72, 11,293.66 and 4,457.72
Similar ratio
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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.