Home / 11,203.82-15,468.92-7,176.55

Finding the Fourth Proportional to 11,203.82, 15,468.92 and 7,176.55

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Solution

The fourth proportional to 11,203.82, 15,468.92 and 7,176.55 is: 9,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,203.82 : 15,468.92 = 7,176.55 : x
  2. Step 2: Convert to fraction form
    11,203.82/15,468.92 = 7,176.55/x
  3. Step 3: Cross multiply
    11,203.82x = 15,468.92 × 7,176.55
  4. Step 4: Simplify right side
    11,203.82x = 111,013,499.56
  5. Step 5: Solve for x
    x = 111,013,499.56/11,203.82
  6. Step 6: Final answer
    x = 9,908.54

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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.