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Finding the Fourth Proportional to 8,235.19, 12,352.81 and 1,995.19

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Solution

The fourth proportional to 8,235.19, 12,352.81 and 1,995.19 is: 2,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.19 : 12,352.81 = 1,995.19 : x
  2. Step 2: Convert to fraction form
    8,235.19/12,352.81 = 1,995.19/x
  3. Step 3: Cross multiply
    8,235.19x = 12,352.81 × 1,995.19
  4. Step 4: Simplify right side
    8,235.19x = 24,646,177.09
  5. Step 5: Solve for x
    x = 24,646,177.09/8,235.19
  6. Step 6: Final answer
    x = 2,992.79

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Double scale
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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.