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Finding the Fourth Proportional to 6,866.06, 9,475.11 and 3,881.89

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Solution

The fourth proportional to 6,866.06, 9,475.11 and 3,881.89 is: 5,356.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,866.06 : 9,475.11 = 3,881.89 : x
  2. Step 2: Convert to fraction form
    6,866.06/9,475.11 = 3,881.89/x
  3. Step 3: Cross multiply
    6,866.06x = 9,475.11 × 3,881.89
  4. Step 4: Simplify right side
    6,866.06x = 36,781,346.60
  5. Step 5: Solve for x
    x = 36,781,346.60/6,866.06
  6. Step 6: Final answer
    x = 5,356.98

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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.