Home / 8,879.09-12,253.83-5,103.57

Finding the Fourth Proportional to 8,879.09, 12,253.83 and 5,103.57

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Solution

The fourth proportional to 8,879.09, 12,253.83 and 5,103.57 is: 7,043.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.09 : 12,253.83 = 5,103.57 : x
  2. Step 2: Convert to fraction form
    8,879.09/12,253.83 = 5,103.57/x
  3. Step 3: Cross multiply
    8,879.09x = 12,253.83 × 5,103.57
  4. Step 4: Simplify right side
    8,879.09x = 62,538,217.90
  5. Step 5: Solve for x
    x = 62,538,217.90/8,879.09
  6. Step 6: Final answer
    x = 7,043.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.