Home / 13,719.82-20,584.67-5,395.22

Finding the Fourth Proportional to 13,719.82, 20,584.67 and 5,395.22

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Solution

The fourth proportional to 13,719.82, 20,584.67 and 5,395.22 is: 8,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.82 : 20,584.67 = 5,395.22 : x
  2. Step 2: Convert to fraction form
    13,719.82/20,584.67 = 5,395.22/x
  3. Step 3: Cross multiply
    13,719.82x = 20,584.67 × 5,395.22
  4. Step 4: Simplify right side
    13,719.82x = 111,058,823.28
  5. Step 5: Solve for x
    x = 111,058,823.28/13,719.82
  6. Step 6: Final answer
    x = 8,094.77

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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.