Home / 10,845.17-16,256.79-4,268.78

Finding the Fourth Proportional to 10,845.17, 16,256.79 and 4,268.78

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Solution

The fourth proportional to 10,845.17, 16,256.79 and 4,268.78 is: 6,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,845.17 : 16,256.79 = 4,268.78 : x
  2. Step 2: Convert to fraction form
    10,845.17/16,256.79 = 4,268.78/x
  3. Step 3: Cross multiply
    10,845.17x = 16,256.79 × 4,268.78
  4. Step 4: Simplify right side
    10,845.17x = 69,396,660.02
  5. Step 5: Solve for x
    x = 69,396,660.02/10,845.17
  6. Step 6: Final answer
    x = 6,398.85

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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.