Home / 12,091.92-18,120.60-6,887.04

Finding the Fourth Proportional to 12,091.92, 18,120.60 and 6,887.04

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Solution

The fourth proportional to 12,091.92, 18,120.60 and 6,887.04 is: 10,320.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.92 : 18,120.60 = 6,887.04 : x
  2. Step 2: Convert to fraction form
    12,091.92/18,120.60 = 6,887.04/x
  3. Step 3: Cross multiply
    12,091.92x = 18,120.60 × 6,887.04
  4. Step 4: Simplify right side
    12,091.92x = 124,797,297.02
  5. Step 5: Solve for x
    x = 124,797,297.02/12,091.92
  6. Step 6: Final answer
    x = 10,320.72

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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.