Home / 8,115.52-11,198.90-4,929.52

Finding the Fourth Proportional to 8,115.52, 11,198.90 and 4,929.52

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Solution

The fourth proportional to 8,115.52, 11,198.90 and 4,929.52 is: 6,802.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.52 : 11,198.90 = 4,929.52 : x
  2. Step 2: Convert to fraction form
    8,115.52/11,198.90 = 4,929.52/x
  3. Step 3: Cross multiply
    8,115.52x = 11,198.90 × 4,929.52
  4. Step 4: Simplify right side
    8,115.52x = 55,205,201.53
  5. Step 5: Solve for x
    x = 55,205,201.53/8,115.52
  6. Step 6: Final answer
    x = 6,802.42

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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.