Home / 12,767.22-19,172.70-10,186.56

Finding the Fourth Proportional to 12,767.22, 19,172.70 and 10,186.56

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Solution

The fourth proportional to 12,767.22, 19,172.70 and 10,186.56 is: 15,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.22 : 19,172.70 = 10,186.56 : x
  2. Step 2: Convert to fraction form
    12,767.22/19,172.70 = 10,186.56/x
  3. Step 3: Cross multiply
    12,767.22x = 19,172.70 × 10,186.56
  4. Step 4: Simplify right side
    12,767.22x = 195,303,858.91
  5. Step 5: Solve for x
    x = 195,303,858.91/12,767.22
  6. Step 6: Final answer
    x = 15,297.29

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1.5x scale

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.