Home / 13,777.20-20,653.66-5,463.06

Finding the Fourth Proportional to 13,777.20, 20,653.66 and 5,463.06

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Solution

The fourth proportional to 13,777.20, 20,653.66 and 5,463.06 is: 8,189.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,777.20 : 20,653.66 = 5,463.06 : x
  2. Step 2: Convert to fraction form
    13,777.20/20,653.66 = 5,463.06/x
  3. Step 3: Cross multiply
    13,777.20x = 20,653.66 × 5,463.06
  4. Step 4: Simplify right side
    13,777.20x = 112,832,183.80
  5. Step 5: Solve for x
    x = 112,832,183.80/13,777.20
  6. Step 6: Final answer
    x = 8,189.78

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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.