Home / 8,181.19-12,270.22-2,256.61

Finding the Fourth Proportional to 8,181.19, 12,270.22 and 2,256.61

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Solution

The fourth proportional to 8,181.19, 12,270.22 and 2,256.61 is: 3,384.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,181.19 : 12,270.22 = 2,256.61 : x
  2. Step 2: Convert to fraction form
    8,181.19/12,270.22 = 2,256.61/x
  3. Step 3: Cross multiply
    8,181.19x = 12,270.22 × 2,256.61
  4. Step 4: Simplify right side
    8,181.19x = 27,689,101.15
  5. Step 5: Solve for x
    x = 27,689,101.15/8,181.19
  6. Step 6: Final answer
    x = 3,384.48

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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.