Home / 8,621.07-12,932.81-3,072.77

Finding the Fourth Proportional to 8,621.07, 12,932.81 and 3,072.77

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Solution

The fourth proportional to 8,621.07, 12,932.81 and 3,072.77 is: 4,609.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.07 : 12,932.81 = 3,072.77 : x
  2. Step 2: Convert to fraction form
    8,621.07/12,932.81 = 3,072.77/x
  3. Step 3: Cross multiply
    8,621.07x = 12,932.81 × 3,072.77
  4. Step 4: Simplify right side
    8,621.07x = 39,739,470.56
  5. Step 5: Solve for x
    x = 39,739,470.56/8,621.07
  6. Step 6: Final answer
    x = 4,609.58

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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.