Home / 13,313.85-19,976.04-8,382.57

Finding the Fourth Proportional to 13,313.85, 19,976.04 and 8,382.57

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Solution

The fourth proportional to 13,313.85, 19,976.04 and 8,382.57 is: 12,577.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.85 : 19,976.04 = 8,382.57 : x
  2. Step 2: Convert to fraction form
    13,313.85/19,976.04 = 8,382.57/x
  3. Step 3: Cross multiply
    13,313.85x = 19,976.04 × 8,382.57
  4. Step 4: Simplify right side
    13,313.85x = 167,450,553.62
  5. Step 5: Solve for x
    x = 167,450,553.62/13,313.85
  6. Step 6: Final answer
    x = 12,577.17

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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.