Home / 11,220.85-15,481.49-6,975.03

Finding the Fourth Proportional to 11,220.85, 15,481.49 and 6,975.03

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Solution

The fourth proportional to 11,220.85, 15,481.49 and 6,975.03 is: 9,623.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.85 : 15,481.49 = 6,975.03 : x
  2. Step 2: Convert to fraction form
    11,220.85/15,481.49 = 6,975.03/x
  3. Step 3: Cross multiply
    11,220.85x = 15,481.49 × 6,975.03
  4. Step 4: Simplify right side
    11,220.85x = 107,983,857.19
  5. Step 5: Solve for x
    x = 107,983,857.19/11,220.85
  6. Step 6: Final answer
    x = 9,623.50

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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.