Home / 15,203.44-20,975.82-8,488

Finding the Fourth Proportional to 15,203.44, 20,975.82 and 8,488

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Solution

The fourth proportional to 15,203.44, 20,975.82 and 8,488 is: 11,710.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,203.44 : 20,975.82 = 8,488 : x
  2. Step 2: Convert to fraction form
    15,203.44/20,975.82 = 8,488/x
  3. Step 3: Cross multiply
    15,203.44x = 20,975.82 × 8,488
  4. Step 4: Simplify right side
    15,203.44x = 178,042,760.16
  5. Step 5: Solve for x
    x = 178,042,760.16/15,203.44
  6. Step 6: Final answer
    x = 11,710.69

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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.