Home / 8,215.38-11,325.41-5,853.42

Finding the Fourth Proportional to 8,215.38, 11,325.41 and 5,853.42

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Solution

The fourth proportional to 8,215.38, 11,325.41 and 5,853.42 is: 8,069.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.38 : 11,325.41 = 5,853.42 : x
  2. Step 2: Convert to fraction form
    8,215.38/11,325.41 = 5,853.42/x
  3. Step 3: Cross multiply
    8,215.38x = 11,325.41 × 5,853.42
  4. Step 4: Simplify right side
    8,215.38x = 66,292,324.78
  5. Step 5: Solve for x
    x = 66,292,324.78/8,215.38
  6. Step 6: Final answer
    x = 8,069.30

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Half scale
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Double scale
Find fourth proportional to 8,216.38, 11,326.79 and 5,854.42
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.