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Finding the Fourth Proportional to 17,119.10, 25,680.70 and 7,257.09

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Solution

The fourth proportional to 17,119.10, 25,680.70 and 7,257.09 is: 10,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,119.10 : 25,680.70 = 7,257.09 : x
  2. Step 2: Convert to fraction form
    17,119.10/25,680.70 = 7,257.09/x
  3. Step 3: Cross multiply
    17,119.10x = 25,680.70 × 7,257.09
  4. Step 4: Simplify right side
    17,119.10x = 186,367,215.72
  5. Step 5: Solve for x
    x = 186,367,215.72/17,119.10
  6. Step 6: Final answer
    x = 10,886.51

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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.