Home / 11,245.71-15,518.97-6,141.21

Finding the Fourth Proportional to 11,245.71, 15,518.97 and 6,141.21

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Solution

The fourth proportional to 11,245.71, 15,518.97 and 6,141.21 is: 8,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.71 : 15,518.97 = 6,141.21 : x
  2. Step 2: Convert to fraction form
    11,245.71/15,518.97 = 6,141.21/x
  3. Step 3: Cross multiply
    11,245.71x = 15,518.97 × 6,141.21
  4. Step 4: Simplify right side
    11,245.71x = 95,305,253.75
  5. Step 5: Solve for x
    x = 95,305,253.75/11,245.71
  6. Step 6: Final answer
    x = 8,474.81

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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.