Home / 11,220.97-15,372.79-10,800.58

Finding the Fourth Proportional to 11,220.97, 15,372.79 and 10,800.58

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Solution

The fourth proportional to 11,220.97, 15,372.79 and 10,800.58 is: 14,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.97 : 15,372.79 = 10,800.58 : x
  2. Step 2: Convert to fraction form
    11,220.97/15,372.79 = 10,800.58/x
  3. Step 3: Cross multiply
    11,220.97x = 15,372.79 × 10,800.58
  4. Step 4: Simplify right side
    11,220.97x = 166,035,048.22
  5. Step 5: Solve for x
    x = 166,035,048.22/11,220.97
  6. Step 6: Final answer
    x = 14,796.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.