Home / 10,621.91-15,932.91-3,226.43

Finding the Fourth Proportional to 10,621.91, 15,932.91 and 3,226.43

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Solution

The fourth proportional to 10,621.91, 15,932.91 and 3,226.43 is: 4,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.91 : 15,932.91 = 3,226.43 : x
  2. Step 2: Convert to fraction form
    10,621.91/15,932.91 = 3,226.43/x
  3. Step 3: Cross multiply
    10,621.91x = 15,932.91 × 3,226.43
  4. Step 4: Simplify right side
    10,621.91x = 51,406,470.74
  5. Step 5: Solve for x
    x = 51,406,470.74/10,621.91
  6. Step 6: Final answer
    x = 4,839.66

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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.