Home / 13,213.88-19,820.78-3,353.14

Finding the Fourth Proportional to 13,213.88, 19,820.78 and 3,353.14

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Solution

The fourth proportional to 13,213.88, 19,820.78 and 3,353.14 is: 5,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.88 : 19,820.78 = 3,353.14 : x
  2. Step 2: Convert to fraction form
    13,213.88/19,820.78 = 3,353.14/x
  3. Step 3: Cross multiply
    13,213.88x = 19,820.78 × 3,353.14
  4. Step 4: Simplify right side
    13,213.88x = 66,461,850.25
  5. Step 5: Solve for x
    x = 66,461,850.25/13,213.88
  6. Step 6: Final answer
    x = 5,029.70

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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.