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Finding the Fourth Proportional to 17,138.98, 25,718.19 and 7,277.23

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Solution

The fourth proportional to 17,138.98, 25,718.19 and 7,277.23 is: 10,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,138.98 : 25,718.19 = 7,277.23 : x
  2. Step 2: Convert to fraction form
    17,138.98/25,718.19 = 7,277.23/x
  3. Step 3: Cross multiply
    17,138.98x = 25,718.19 × 7,277.23
  4. Step 4: Simplify right side
    17,138.98x = 187,157,183.81
  5. Step 5: Solve for x
    x = 187,157,183.81/17,138.98
  6. Step 6: Final answer
    x = 10,919.97

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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.