Home / 13,081.24-19,622.82-5,289.88

Finding the Fourth Proportional to 13,081.24, 19,622.82 and 5,289.88

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Solution

The fourth proportional to 13,081.24, 19,622.82 and 5,289.88 is: 7,935.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.24 : 19,622.82 = 5,289.88 : x
  2. Step 2: Convert to fraction form
    13,081.24/19,622.82 = 5,289.88/x
  3. Step 3: Cross multiply
    13,081.24x = 19,622.82 × 5,289.88
  4. Step 4: Simplify right side
    13,081.24x = 103,802,363.06
  5. Step 5: Solve for x
    x = 103,802,363.06/13,081.24
  6. Step 6: Final answer
    x = 7,935.21

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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.