Home / 13,305.49-19,958.22-3,945.58

Finding the Fourth Proportional to 13,305.49, 19,958.22 and 3,945.58

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Solution

The fourth proportional to 13,305.49, 19,958.22 and 3,945.58 is: 5,918.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.49 : 19,958.22 = 3,945.58 : x
  2. Step 2: Convert to fraction form
    13,305.49/19,958.22 = 3,945.58/x
  3. Step 3: Cross multiply
    13,305.49x = 19,958.22 × 3,945.58
  4. Step 4: Simplify right side
    13,305.49x = 78,746,753.67
  5. Step 5: Solve for x
    x = 78,746,753.67/13,305.49
  6. Step 6: Final answer
    x = 5,918.37

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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.