Home / 8,115.25-11,197.33-4,930.20

Finding the Fourth Proportional to 8,115.25, 11,197.33 and 4,930.20

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Solution

The fourth proportional to 8,115.25, 11,197.33 and 4,930.20 is: 6,802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.25 : 11,197.33 = 4,930.20 : x
  2. Step 2: Convert to fraction form
    8,115.25/11,197.33 = 4,930.20/x
  3. Step 3: Cross multiply
    8,115.25x = 11,197.33 × 4,930.20
  4. Step 4: Simplify right side
    8,115.25x = 55,205,104.35
  5. Step 5: Solve for x
    x = 55,205,104.35/8,115.25
  6. Step 6: Final answer
    x = 6,802.64

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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.