Home / 7,821.52-11,724.99-2,623.75

Finding the Fourth Proportional to 7,821.52, 11,724.99 and 2,623.75

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Solution

The fourth proportional to 7,821.52, 11,724.99 and 2,623.75 is: 3,933.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.52 : 11,724.99 = 2,623.75 : x
  2. Step 2: Convert to fraction form
    7,821.52/11,724.99 = 2,623.75/x
  3. Step 3: Cross multiply
    7,821.52x = 11,724.99 × 2,623.75
  4. Step 4: Simplify right side
    7,821.52x = 30,763,442.51
  5. Step 5: Solve for x
    x = 30,763,442.51/7,821.52
  6. Step 6: Final answer
    x = 3,933.18

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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.