Home / 7,989.46-11,976.08-3,823.36

Finding the Fourth Proportional to 7,989.46, 11,976.08 and 3,823.36

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Solution

The fourth proportional to 7,989.46, 11,976.08 and 3,823.36 is: 5,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.46 : 11,976.08 = 3,823.36 : x
  2. Step 2: Convert to fraction form
    7,989.46/11,976.08 = 3,823.36/x
  3. Step 3: Cross multiply
    7,989.46x = 11,976.08 × 3,823.36
  4. Step 4: Simplify right side
    7,989.46x = 45,788,816.17
  5. Step 5: Solve for x
    x = 45,788,816.17/7,989.46
  6. Step 6: Final answer
    x = 5,731.15

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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.