Home / 17,117.87-25,680.58-5,272.70

Finding the Fourth Proportional to 17,117.87, 25,680.58 and 5,272.70

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Solution

The fourth proportional to 17,117.87, 25,680.58 and 5,272.70 is: 7,910.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,117.87 : 25,680.58 = 5,272.70 : x
  2. Step 2: Convert to fraction form
    17,117.87/25,680.58 = 5,272.70/x
  3. Step 3: Cross multiply
    17,117.87x = 25,680.58 × 5,272.70
  4. Step 4: Simplify right side
    17,117.87x = 135,405,852.58
  5. Step 5: Solve for x
    x = 135,405,852.58/17,117.87
  6. Step 6: Final answer
    x = 7,910.21

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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.