Home / 18,118.34-27,172.24-7,022.55

Finding the Fourth Proportional to 18,118.34, 27,172.24 and 7,022.55

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Solution

The fourth proportional to 18,118.34, 27,172.24 and 7,022.55 is: 10,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.34 : 27,172.24 = 7,022.55 : x
  2. Step 2: Convert to fraction form
    18,118.34/27,172.24 = 7,022.55/x
  3. Step 3: Cross multiply
    18,118.34x = 27,172.24 × 7,022.55
  4. Step 4: Simplify right side
    18,118.34x = 190,818,414.01
  5. Step 5: Solve for x
    x = 190,818,414.01/18,118.34
  6. Step 6: Final answer
    x = 10,531.78

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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.