Home / 12,083.55-18,128.97-8,150.60

Finding the Fourth Proportional to 12,083.55, 18,128.97 and 8,150.60

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Solution

The fourth proportional to 12,083.55, 18,128.97 and 8,150.60 is: 12,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.55 : 18,128.97 = 8,150.60 : x
  2. Step 2: Convert to fraction form
    12,083.55/18,128.97 = 8,150.60/x
  3. Step 3: Cross multiply
    12,083.55x = 18,128.97 × 8,150.60
  4. Step 4: Simplify right side
    12,083.55x = 147,761,892.24
  5. Step 5: Solve for x
    x = 147,761,892.24/12,083.55
  6. Step 6: Final answer
    x = 12,228.35

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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.