Home / 8,103-11,182.20-4,961.28

Finding the Fourth Proportional to 8,103, 11,182.20 and 4,961.28

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Solution

The fourth proportional to 8,103, 11,182.20 and 4,961.28 is: 6,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103 : 11,182.20 = 4,961.28 : x
  2. Step 2: Convert to fraction form
    8,103/11,182.20 = 4,961.28/x
  3. Step 3: Cross multiply
    8,103x = 11,182.20 × 4,961.28
  4. Step 4: Simplify right side
    8,103x = 55,478,025.22
  5. Step 5: Solve for x
    x = 55,478,025.22/8,103
  6. Step 6: Final answer
    x = 6,846.60

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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.