Home / 13,533.35-20,250.81-11,171.39

Finding the Fourth Proportional to 13,533.35, 20,250.81 and 11,171.39

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Solution

The fourth proportional to 13,533.35, 20,250.81 and 11,171.39 is: 16,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.35 : 20,250.81 = 11,171.39 : x
  2. Step 2: Convert to fraction form
    13,533.35/20,250.81 = 11,171.39/x
  3. Step 3: Cross multiply
    13,533.35x = 20,250.81 × 11,171.39
  4. Step 4: Simplify right side
    13,533.35x = 226,229,595.07
  5. Step 5: Solve for x
    x = 226,229,595.07/13,533.35
  6. Step 6: Final answer
    x = 16,716.46

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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.