Home / 17,128.80-25,680.24-6,734.88

Finding the Fourth Proportional to 17,128.80, 25,680.24 and 6,734.88

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Solution

The fourth proportional to 17,128.80, 25,680.24 and 6,734.88 is: 10,097.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,128.80 : 25,680.24 = 6,734.88 : x
  2. Step 2: Convert to fraction form
    17,128.80/25,680.24 = 6,734.88/x
  3. Step 3: Cross multiply
    17,128.80x = 25,680.24 × 6,734.88
  4. Step 4: Simplify right side
    17,128.80x = 172,953,334.77
  5. Step 5: Solve for x
    x = 172,953,334.77/17,128.80
  6. Step 6: Final answer
    x = 10,097.22

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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.