Home / 8,142.73-11,235.51-4,786.21

Finding the Fourth Proportional to 8,142.73, 11,235.51 and 4,786.21

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Solution

The fourth proportional to 8,142.73, 11,235.51 and 4,786.21 is: 6,604.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.73 : 11,235.51 = 4,786.21 : x
  2. Step 2: Convert to fraction form
    8,142.73/11,235.51 = 4,786.21/x
  3. Step 3: Cross multiply
    8,142.73x = 11,235.51 × 4,786.21
  4. Step 4: Simplify right side
    8,142.73x = 53,775,524.36
  5. Step 5: Solve for x
    x = 53,775,524.36/8,142.73
  6. Step 6: Final answer
    x = 6,604.12

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Half scale
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Double scale
Find fourth proportional to 8,143.73, 11,236.89 and 4,787.21
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.