Home / 10,621.38-15,932.69-3,226.08

Finding the Fourth Proportional to 10,621.38, 15,932.69 and 3,226.08

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Solution

The fourth proportional to 10,621.38, 15,932.69 and 3,226.08 is: 4,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.38 : 15,932.69 = 3,226.08 : x
  2. Step 2: Convert to fraction form
    10,621.38/15,932.69 = 3,226.08/x
  3. Step 3: Cross multiply
    10,621.38x = 15,932.69 × 3,226.08
  4. Step 4: Simplify right side
    10,621.38x = 51,400,132.56
  5. Step 5: Solve for x
    x = 51,400,132.56/10,621.38
  6. Step 6: Final answer
    x = 4,839.31

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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.