Home / 15,556.41-21,469.13-8,844.15

Finding the Fourth Proportional to 15,556.41, 21,469.13 and 8,844.15

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Solution

The fourth proportional to 15,556.41, 21,469.13 and 8,844.15 is: 12,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,556.41 : 21,469.13 = 8,844.15 : x
  2. Step 2: Convert to fraction form
    15,556.41/21,469.13 = 8,844.15/x
  3. Step 3: Cross multiply
    15,556.41x = 21,469.13 × 8,844.15
  4. Step 4: Simplify right side
    15,556.41x = 189,876,054.52
  5. Step 5: Solve for x
    x = 189,876,054.52/15,556.41
  6. Step 6: Final answer
    x = 12,205.65

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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.