Home / 11,173.97-15,420.24-6,138.65

Finding the Fourth Proportional to 11,173.97, 15,420.24 and 6,138.65

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Solution

The fourth proportional to 11,173.97, 15,420.24 and 6,138.65 is: 8,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.97 : 15,420.24 = 6,138.65 : x
  2. Step 2: Convert to fraction form
    11,173.97/15,420.24 = 6,138.65/x
  3. Step 3: Cross multiply
    11,173.97x = 15,420.24 × 6,138.65
  4. Step 4: Simplify right side
    11,173.97x = 94,659,379.17
  5. Step 5: Solve for x
    x = 94,659,379.17/11,173.97
  6. Step 6: Final answer
    x = 8,471.42

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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.