Home / 11,724.80-17,581.20-3,822.24

Finding the Fourth Proportional to 11,724.80, 17,581.20 and 3,822.24

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Solution

The fourth proportional to 11,724.80, 17,581.20 and 3,822.24 is: 5,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.80 : 17,581.20 = 3,822.24 : x
  2. Step 2: Convert to fraction form
    11,724.80/17,581.20 = 3,822.24/x
  3. Step 3: Cross multiply
    11,724.80x = 17,581.20 × 3,822.24
  4. Step 4: Simplify right side
    11,724.80x = 67,199,540.09
  5. Step 5: Solve for x
    x = 67,199,540.09/11,724.80
  6. Step 6: Final answer
    x = 5,731.40

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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.