Home / 13,533.20-20,286.36-6,511.76

Finding the Fourth Proportional to 13,533.20, 20,286.36 and 6,511.76

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Solution

The fourth proportional to 13,533.20, 20,286.36 and 6,511.76 is: 9,761.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.20 : 20,286.36 = 6,511.76 : x
  2. Step 2: Convert to fraction form
    13,533.20/20,286.36 = 6,511.76/x
  3. Step 3: Cross multiply
    13,533.20x = 20,286.36 × 6,511.76
  4. Step 4: Simplify right side
    13,533.20x = 132,099,907.59
  5. Step 5: Solve for x
    x = 132,099,907.59/13,533.20
  6. Step 6: Final answer
    x = 9,761.17

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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.