Home / 17,072.80-25,623.60-7,727.20

Finding the Fourth Proportional to 17,072.80, 25,623.60 and 7,727.20

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Solution

The fourth proportional to 17,072.80, 25,623.60 and 7,727.20 is: 11,597.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,072.80 : 25,623.60 = 7,727.20 : x
  2. Step 2: Convert to fraction form
    17,072.80/25,623.60 = 7,727.20/x
  3. Step 3: Cross multiply
    17,072.80x = 25,623.60 × 7,727.20
  4. Step 4: Simplify right side
    17,072.80x = 197,998,681.92
  5. Step 5: Solve for x
    x = 197,998,681.92/17,072.80
  6. Step 6: Final answer
    x = 11,597.32

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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.