Home / 18,764.45-28,144.59-4,724.48

Finding the Fourth Proportional to 18,764.45, 28,144.59 and 4,724.48

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Solution

The fourth proportional to 18,764.45, 28,144.59 and 4,724.48 is: 7,086.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.45 : 28,144.59 = 4,724.48 : x
  2. Step 2: Convert to fraction form
    18,764.45/28,144.59 = 4,724.48/x
  3. Step 3: Cross multiply
    18,764.45x = 28,144.59 × 4,724.48
  4. Step 4: Simplify right side
    18,764.45x = 132,968,394.12
  5. Step 5: Solve for x
    x = 132,968,394.12/18,764.45
  6. Step 6: Final answer
    x = 7,086.19

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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.