Home / 10,268.78-14,173.11-6,489.54

Finding the Fourth Proportional to 10,268.78, 14,173.11 and 6,489.54

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Solution

The fourth proportional to 10,268.78, 14,173.11 and 6,489.54 is: 8,956.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,268.78 : 14,173.11 = 6,489.54 : x
  2. Step 2: Convert to fraction form
    10,268.78/14,173.11 = 6,489.54/x
  3. Step 3: Cross multiply
    10,268.78x = 14,173.11 × 6,489.54
  4. Step 4: Simplify right side
    10,268.78x = 91,976,964.27
  5. Step 5: Solve for x
    x = 91,976,964.27/10,268.78
  6. Step 6: Final answer
    x = 8,956.96

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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.