Home / 18,222.78-27,334.26-5,742.30

Finding the Fourth Proportional to 18,222.78, 27,334.26 and 5,742.30

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Solution

The fourth proportional to 18,222.78, 27,334.26 and 5,742.30 is: 8,613.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,222.78 : 27,334.26 = 5,742.30 : x
  2. Step 2: Convert to fraction form
    18,222.78/27,334.26 = 5,742.30/x
  3. Step 3: Cross multiply
    18,222.78x = 27,334.26 × 5,742.30
  4. Step 4: Simplify right side
    18,222.78x = 156,961,521.20
  5. Step 5: Solve for x
    x = 156,961,521.20/18,222.78
  6. Step 6: Final answer
    x = 8,613.48

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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.