Home / 13,511.80-20,267.70-9,796.60

Finding the Fourth Proportional to 13,511.80, 20,267.70 and 9,796.60

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Solution

The fourth proportional to 13,511.80, 20,267.70 and 9,796.60 is: 14,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.80 : 20,267.70 = 9,796.60 : x
  2. Step 2: Convert to fraction form
    13,511.80/20,267.70 = 9,796.60/x
  3. Step 3: Cross multiply
    13,511.80x = 20,267.70 × 9,796.60
  4. Step 4: Simplify right side
    13,511.80x = 198,554,549.82
  5. Step 5: Solve for x
    x = 198,554,549.82/13,511.80
  6. Step 6: Final answer
    x = 14,694.90

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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.