Home / 13,081.82-19,619.96-4,314.65

Finding the Fourth Proportional to 13,081.82, 19,619.96 and 4,314.65

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Solution

The fourth proportional to 13,081.82, 19,619.96 and 4,314.65 is: 6,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.82 : 19,619.96 = 4,314.65 : x
  2. Step 2: Convert to fraction form
    13,081.82/19,619.96 = 4,314.65/x
  3. Step 3: Cross multiply
    13,081.82x = 19,619.96 × 4,314.65
  4. Step 4: Simplify right side
    13,081.82x = 84,653,140.74
  5. Step 5: Solve for x
    x = 84,653,140.74/13,081.82
  6. Step 6: Final answer
    x = 6,471.05

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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.