Home / 13,172.25-18,192.42-10,223.85

Finding the Fourth Proportional to 13,172.25, 18,192.42 and 10,223.85

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Solution

The fourth proportional to 13,172.25, 18,192.42 and 10,223.85 is: 14,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.25 : 18,192.42 = 10,223.85 : x
  2. Step 2: Convert to fraction form
    13,172.25/18,192.42 = 10,223.85/x
  3. Step 3: Cross multiply
    13,172.25x = 18,192.42 × 10,223.85
  4. Step 4: Simplify right side
    13,172.25x = 185,996,573.22
  5. Step 5: Solve for x
    x = 185,996,573.22/13,172.25
  6. Step 6: Final answer
    x = 14,120.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.