Home / 13,187.26-19,780.75-3,953.26

Finding the Fourth Proportional to 13,187.26, 19,780.75 and 3,953.26

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Solution

The fourth proportional to 13,187.26, 19,780.75 and 3,953.26 is: 5,929.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.26 : 19,780.75 = 3,953.26 : x
  2. Step 2: Convert to fraction form
    13,187.26/19,780.75 = 3,953.26/x
  3. Step 3: Cross multiply
    13,187.26x = 19,780.75 × 3,953.26
  4. Step 4: Simplify right side
    13,187.26x = 78,198,447.75
  5. Step 5: Solve for x
    x = 78,198,447.75/13,187.26
  6. Step 6: Final answer
    x = 5,929.85

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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.