Home / 13,654.80-20,449.32-7,793.64

Finding the Fourth Proportional to 13,654.80, 20,449.32 and 7,793.64

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Solution

The fourth proportional to 13,654.80, 20,449.32 and 7,793.64 is: 11,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.80 : 20,449.32 = 7,793.64 : x
  2. Step 2: Convert to fraction form
    13,654.80/20,449.32 = 7,793.64/x
  3. Step 3: Cross multiply
    13,654.80x = 20,449.32 × 7,793.64
  4. Step 4: Simplify right side
    13,654.80x = 159,374,638.32
  5. Step 5: Solve for x
    x = 159,374,638.32/13,654.80
  6. Step 6: Final answer
    x = 11,671.69

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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.