Home / 13,129.50-19,694.25-3,895.50

Finding the Fourth Proportional to 13,129.50, 19,694.25 and 3,895.50

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Solution

The fourth proportional to 13,129.50, 19,694.25 and 3,895.50 is: 5,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.50 : 19,694.25 = 3,895.50 : x
  2. Step 2: Convert to fraction form
    13,129.50/19,694.25 = 3,895.50/x
  3. Step 3: Cross multiply
    13,129.50x = 19,694.25 × 3,895.50
  4. Step 4: Simplify right side
    13,129.50x = 76,718,950.88
  5. Step 5: Solve for x
    x = 76,718,950.88/13,129.50
  6. Step 6: Final answer
    x = 5,843.25

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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.