Home / 11,224.80-16,829.10-7,331.40

Finding the Fourth Proportional to 11,224.80, 16,829.10 and 7,331.40

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Solution

The fourth proportional to 11,224.80, 16,829.10 and 7,331.40 is: 10,991.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,224.80 : 16,829.10 = 7,331.40 : x
  2. Step 2: Convert to fraction form
    11,224.80/16,829.10 = 7,331.40/x
  3. Step 3: Cross multiply
    11,224.80x = 16,829.10 × 7,331.40
  4. Step 4: Simplify right side
    11,224.80x = 123,380,863.74
  5. Step 5: Solve for x
    x = 123,380,863.74/11,224.80
  6. Step 6: Final answer
    x = 10,991.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.