Home / 11,213.45-16,820.04-3,422.29

Finding the Fourth Proportional to 11,213.45, 16,820.04 and 3,422.29

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Solution

The fourth proportional to 11,213.45, 16,820.04 and 3,422.29 is: 5,133.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.45 : 16,820.04 = 3,422.29 : x
  2. Step 2: Convert to fraction form
    11,213.45/16,820.04 = 3,422.29/x
  3. Step 3: Cross multiply
    11,213.45x = 16,820.04 × 3,422.29
  4. Step 4: Simplify right side
    11,213.45x = 57,563,054.69
  5. Step 5: Solve for x
    x = 57,563,054.69/11,213.45
  6. Step 6: Final answer
    x = 5,133.39

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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.