Home / 10,222.20-15,330.87-6,934.41

Finding the Fourth Proportional to 10,222.20, 15,330.87 and 6,934.41

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Solution

The fourth proportional to 10,222.20, 15,330.87 and 6,934.41 is: 10,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.20 : 15,330.87 = 6,934.41 : x
  2. Step 2: Convert to fraction form
    10,222.20/15,330.87 = 6,934.41/x
  3. Step 3: Cross multiply
    10,222.20x = 15,330.87 × 6,934.41
  4. Step 4: Simplify right side
    10,222.20x = 106,310,538.24
  5. Step 5: Solve for x
    x = 106,310,538.24/10,222.20
  6. Step 6: Final answer
    x = 10,399.97

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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.