Home / 10,268.57-14,139.56-8,469.36

Finding the Fourth Proportional to 10,268.57, 14,139.56 and 8,469.36

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Solution

The fourth proportional to 10,268.57, 14,139.56 and 8,469.36 is: 11,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,268.57 : 14,139.56 = 8,469.36 : x
  2. Step 2: Convert to fraction form
    10,268.57/14,139.56 = 8,469.36/x
  3. Step 3: Cross multiply
    10,268.57x = 14,139.56 × 8,469.36
  4. Step 4: Simplify right side
    10,268.57x = 119,753,045.06
  5. Step 5: Solve for x
    x = 119,753,045.06/10,268.57
  6. Step 6: Final answer
    x = 11,662.09

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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.