Home / 12,231.05-16,878.92-7,195.47

Finding the Fourth Proportional to 12,231.05, 16,878.92 and 7,195.47

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Solution

The fourth proportional to 12,231.05, 16,878.92 and 7,195.47 is: 9,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.05 : 16,878.92 = 7,195.47 : x
  2. Step 2: Convert to fraction form
    12,231.05/16,878.92 = 7,195.47/x
  3. Step 3: Cross multiply
    12,231.05x = 16,878.92 × 7,195.47
  4. Step 4: Simplify right side
    12,231.05x = 121,451,726.52
  5. Step 5: Solve for x
    x = 121,451,726.52/12,231.05
  6. Step 6: Final answer
    x = 9,929.79

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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.