Home / 11,128.40-16,665.60-5,922.80

Finding the Fourth Proportional to 11,128.40, 16,665.60 and 5,922.80

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Solution

The fourth proportional to 11,128.40, 16,665.60 and 5,922.80 is: 8,869.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.40 : 16,665.60 = 5,922.80 : x
  2. Step 2: Convert to fraction form
    11,128.40/16,665.60 = 5,922.80/x
  3. Step 3: Cross multiply
    11,128.40x = 16,665.60 × 5,922.80
  4. Step 4: Simplify right side
    11,128.40x = 98,707,015.68
  5. Step 5: Solve for x
    x = 98,707,015.68/11,128.40
  6. Step 6: Final answer
    x = 8,869.83

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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.