Home / 13,945.14-19,244.25-8,283.78

Finding the Fourth Proportional to 13,945.14, 19,244.25 and 8,283.78

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Solution

The fourth proportional to 13,945.14, 19,244.25 and 8,283.78 is: 11,431.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.14 : 19,244.25 = 8,283.78 : x
  2. Step 2: Convert to fraction form
    13,945.14/19,244.25 = 8,283.78/x
  3. Step 3: Cross multiply
    13,945.14x = 19,244.25 × 8,283.78
  4. Step 4: Simplify right side
    13,945.14x = 159,415,133.27
  5. Step 5: Solve for x
    x = 159,415,133.27/13,945.14
  6. Step 6: Final answer
    x = 11,431.59

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1.5x scale

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.