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Finding the Fourth Proportional to 6,807.81, 9,394.73 and 3,823.64

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Solution

The fourth proportional to 6,807.81, 9,394.73 and 3,823.64 is: 5,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807.81 : 9,394.73 = 3,823.64 : x
  2. Step 2: Convert to fraction form
    6,807.81/9,394.73 = 3,823.64/x
  3. Step 3: Cross multiply
    6,807.81x = 9,394.73 × 3,823.64
  4. Step 4: Simplify right side
    6,807.81x = 35,921,999.33
  5. Step 5: Solve for x
    x = 35,921,999.33/6,807.81
  6. Step 6: Final answer
    x = 5,276.59

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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.