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Finding the Fourth Proportional to 8,181.94, 12,268.81 and 3,802.47

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Solution

The fourth proportional to 8,181.94, 12,268.81 and 3,802.47 is: 5,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.94 : 12,268.81 = 3,802.47 : x
  2. Step 2: Convert to fraction form
    8,181.94/12,268.81 = 3,802.47/x
  3. Step 3: Cross multiply
    8,181.94x = 12,268.81 × 3,802.47
  4. Step 4: Simplify right side
    8,181.94x = 46,651,762.95
  5. Step 5: Solve for x
    x = 46,651,762.95/8,181.94
  6. Step 6: Final answer
    x = 5,701.80

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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.