Home / 12,738.73-19,110.81-4,947.52

Finding the Fourth Proportional to 12,738.73, 19,110.81 and 4,947.52

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Solution

The fourth proportional to 12,738.73, 19,110.81 and 4,947.52 is: 7,422.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.73 : 19,110.81 = 4,947.52 : x
  2. Step 2: Convert to fraction form
    12,738.73/19,110.81 = 4,947.52/x
  3. Step 3: Cross multiply
    12,738.73x = 19,110.81 × 4,947.52
  4. Step 4: Simplify right side
    12,738.73x = 94,551,114.69
  5. Step 5: Solve for x
    x = 94,551,114.69/12,738.73
  6. Step 6: Final answer
    x = 7,422.33

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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.