Home / 18,225.86-27,331.09-5,742.54

Finding the Fourth Proportional to 18,225.86, 27,331.09 and 5,742.54

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Solution

The fourth proportional to 18,225.86, 27,331.09 and 5,742.54 is: 8,611.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.86 : 27,331.09 = 5,742.54 : x
  2. Step 2: Convert to fraction form
    18,225.86/27,331.09 = 5,742.54/x
  3. Step 3: Cross multiply
    18,225.86x = 27,331.09 × 5,742.54
  4. Step 4: Simplify right side
    18,225.86x = 156,949,863.21
  5. Step 5: Solve for x
    x = 156,949,863.21/18,225.86
  6. Step 6: Final answer
    x = 8,611.39

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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.