Home / 13,211.70-19,824.54-5,821.32

Finding the Fourth Proportional to 13,211.70, 19,824.54 and 5,821.32

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Solution

The fourth proportional to 13,211.70, 19,824.54 and 5,821.32 is: 8,735.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.70 : 19,824.54 = 5,821.32 : x
  2. Step 2: Convert to fraction form
    13,211.70/19,824.54 = 5,821.32/x
  3. Step 3: Cross multiply
    13,211.70x = 19,824.54 × 5,821.32
  4. Step 4: Simplify right side
    13,211.70x = 115,404,991.19
  5. Step 5: Solve for x
    x = 115,404,991.19/13,211.70
  6. Step 6: Final answer
    x = 8,735.06

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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.