Home / 18,165.16-27,247.82-5,515.02

Finding the Fourth Proportional to 18,165.16, 27,247.82 and 5,515.02

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Solution

The fourth proportional to 18,165.16, 27,247.82 and 5,515.02 is: 8,272.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,165.16 : 27,247.82 = 5,515.02 : x
  2. Step 2: Convert to fraction form
    18,165.16/27,247.82 = 5,515.02/x
  3. Step 3: Cross multiply
    18,165.16x = 27,247.82 × 5,515.02
  4. Step 4: Simplify right side
    18,165.16x = 150,272,244.68
  5. Step 5: Solve for x
    x = 150,272,244.68/18,165.16
  6. Step 6: Final answer
    x = 8,272.55

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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.