Home / 17,145.53-25,709.78-5,457.23

Finding the Fourth Proportional to 17,145.53, 25,709.78 and 5,457.23

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Solution

The fourth proportional to 17,145.53, 25,709.78 and 5,457.23 is: 8,183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.53 : 25,709.78 = 5,457.23 : x
  2. Step 2: Convert to fraction form
    17,145.53/25,709.78 = 5,457.23/x
  3. Step 3: Cross multiply
    17,145.53x = 25,709.78 × 5,457.23
  4. Step 4: Simplify right side
    17,145.53x = 140,304,067.80
  5. Step 5: Solve for x
    x = 140,304,067.80/17,145.53
  6. Step 6: Final answer
    x = 8,183.13

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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.