Home / 13,905.48-20,858.04-3,375.59

Finding the Fourth Proportional to 13,905.48, 20,858.04 and 3,375.59

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Solution

The fourth proportional to 13,905.48, 20,858.04 and 3,375.59 is: 5,063.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.48 : 20,858.04 = 3,375.59 : x
  2. Step 2: Convert to fraction form
    13,905.48/20,858.04 = 3,375.59/x
  3. Step 3: Cross multiply
    13,905.48x = 20,858.04 × 3,375.59
  4. Step 4: Simplify right side
    13,905.48x = 70,408,191.24
  5. Step 5: Solve for x
    x = 70,408,191.24/13,905.48
  6. Step 6: Final answer
    x = 5,063.34

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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.