Home / 12,896.73-19,348.88-5,403.87

Finding the Fourth Proportional to 12,896.73, 19,348.88 and 5,403.87

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Solution

The fourth proportional to 12,896.73, 19,348.88 and 5,403.87 is: 8,107.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.73 : 19,348.88 = 5,403.87 : x
  2. Step 2: Convert to fraction form
    12,896.73/19,348.88 = 5,403.87/x
  3. Step 3: Cross multiply
    12,896.73x = 19,348.88 × 5,403.87
  4. Step 4: Simplify right side
    12,896.73x = 104,558,805.15
  5. Step 5: Solve for x
    x = 104,558,805.15/12,896.73
  6. Step 6: Final answer
    x = 8,107.39

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1.5x scale

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.