Home / 11,223.20-16,837.20-3,432.80

Finding the Fourth Proportional to 11,223.20, 16,837.20 and 3,432.80

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Solution

The fourth proportional to 11,223.20, 16,837.20 and 3,432.80 is: 5,149.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.20 : 16,837.20 = 3,432.80 : x
  2. Step 2: Convert to fraction form
    11,223.20/16,837.20 = 3,432.80/x
  3. Step 3: Cross multiply
    11,223.20x = 16,837.20 × 3,432.80
  4. Step 4: Simplify right side
    11,223.20x = 57,798,740.16
  5. Step 5: Solve for x
    x = 57,798,740.16/11,223.20
  6. Step 6: Final answer
    x = 5,149.93

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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.