Home / 13,200.80-19,819.20-8,549.60

Finding the Fourth Proportional to 13,200.80, 19,819.20 and 8,549.60

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Solution

The fourth proportional to 13,200.80, 19,819.20 and 8,549.60 is: 12,836.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.80 : 19,819.20 = 8,549.60 : x
  2. Step 2: Convert to fraction form
    13,200.80/19,819.20 = 8,549.60/x
  3. Step 3: Cross multiply
    13,200.80x = 19,819.20 × 8,549.60
  4. Step 4: Simplify right side
    13,200.80x = 169,446,232.32
  5. Step 5: Solve for x
    x = 169,446,232.32/13,200.80
  6. Step 6: Final answer
    x = 12,836.06

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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.