Home / 15,922.69-21,974.22-8,851.39

Finding the Fourth Proportional to 15,922.69, 21,974.22 and 8,851.39

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Solution

The fourth proportional to 15,922.69, 21,974.22 and 8,851.39 is: 12,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.69 : 21,974.22 = 8,851.39 : x
  2. Step 2: Convert to fraction form
    15,922.69/21,974.22 = 8,851.39/x
  3. Step 3: Cross multiply
    15,922.69x = 21,974.22 × 8,851.39
  4. Step 4: Simplify right side
    15,922.69x = 194,502,336.23
  5. Step 5: Solve for x
    x = 194,502,336.23/15,922.69
  6. Step 6: Final answer
    x = 12,215.42

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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.