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Finding the Fourth Proportional to 13,340.88, 20,008.80 and 6,770.88

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Solution

The fourth proportional to 13,340.88, 20,008.80 and 6,770.88 is: 10,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.88 : 20,008.80 = 6,770.88 : x
  2. Step 2: Convert to fraction form
    13,340.88/20,008.80 = 6,770.88/x
  3. Step 3: Cross multiply
    13,340.88x = 20,008.80 × 6,770.88
  4. Step 4: Simplify right side
    13,340.88x = 135,477,183.74
  5. Step 5: Solve for x
    x = 135,477,183.74/13,340.88
  6. Step 6: Final answer
    x = 10,155.04

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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.