Home / 12,135.27-18,179.56-7,441.58

Finding the Fourth Proportional to 12,135.27, 18,179.56 and 7,441.58

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Solution

The fourth proportional to 12,135.27, 18,179.56 and 7,441.58 is: 11,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.27 : 18,179.56 = 7,441.58 : x
  2. Step 2: Convert to fraction form
    12,135.27/18,179.56 = 7,441.58/x
  3. Step 3: Cross multiply
    12,135.27x = 18,179.56 × 7,441.58
  4. Step 4: Simplify right side
    12,135.27x = 135,284,650.10
  5. Step 5: Solve for x
    x = 135,284,650.10/12,135.27
  6. Step 6: Final answer
    x = 11,148.05

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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.