Home / 13,200.68-19,799.73-5,408.88

Finding the Fourth Proportional to 13,200.68, 19,799.73 and 5,408.88

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Solution

The fourth proportional to 13,200.68, 19,799.73 and 5,408.88 is: 8,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.68 : 19,799.73 = 5,408.88 : x
  2. Step 2: Convert to fraction form
    13,200.68/19,799.73 = 5,408.88/x
  3. Step 3: Cross multiply
    13,200.68x = 19,799.73 × 5,408.88
  4. Step 4: Simplify right side
    13,200.68x = 107,094,363.60
  5. Step 5: Solve for x
    x = 107,094,363.60/13,200.68
  6. Step 6: Final answer
    x = 8,112.79

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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.