Home / 11,206.38-16,812.21-6,279.42

Finding the Fourth Proportional to 11,206.38, 16,812.21 and 6,279.42

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Solution

The fourth proportional to 11,206.38, 16,812.21 and 6,279.42 is: 9,420.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,206.38 : 16,812.21 = 6,279.42 : x
  2. Step 2: Convert to fraction form
    11,206.38/16,812.21 = 6,279.42/x
  3. Step 3: Cross multiply
    11,206.38x = 16,812.21 × 6,279.42
  4. Step 4: Simplify right side
    11,206.38x = 105,570,978.99
  5. Step 5: Solve for x
    x = 105,570,978.99/11,206.38
  6. Step 6: Final answer
    x = 9,420.61

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1.5x scale

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.