Home / 13,172.26-19,730.23-10,662.61

Finding the Fourth Proportional to 13,172.26, 19,730.23 and 10,662.61

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Solution

The fourth proportional to 13,172.26, 19,730.23 and 10,662.61 is: 15,971.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.26 : 19,730.23 = 10,662.61 : x
  2. Step 2: Convert to fraction form
    13,172.26/19,730.23 = 10,662.61/x
  3. Step 3: Cross multiply
    13,172.26x = 19,730.23 × 10,662.61
  4. Step 4: Simplify right side
    13,172.26x = 210,375,747.70
  5. Step 5: Solve for x
    x = 210,375,747.70/13,172.26
  6. Step 6: Final answer
    x = 15,971.12

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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.