Home / 18,414.45-27,621-5,266.80

Finding the Fourth Proportional to 18,414.45, 27,621 and 5,266.80

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Solution

The fourth proportional to 18,414.45, 27,621 and 5,266.80 is: 7,900.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.45 : 27,621 = 5,266.80 : x
  2. Step 2: Convert to fraction form
    18,414.45/27,621 = 5,266.80/x
  3. Step 3: Cross multiply
    18,414.45x = 27,621 × 5,266.80
  4. Step 4: Simplify right side
    18,414.45x = 145,474,282.80
  5. Step 5: Solve for x
    x = 145,474,282.80/18,414.45
  6. Step 6: Final answer
    x = 7,900.01

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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.