Home / 13,599.20-20,396.34-8,654.14

Finding the Fourth Proportional to 13,599.20, 20,396.34 and 8,654.14

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Solution

The fourth proportional to 13,599.20, 20,396.34 and 8,654.14 is: 12,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.20 : 20,396.34 = 8,654.14 : x
  2. Step 2: Convert to fraction form
    13,599.20/20,396.34 = 8,654.14/x
  3. Step 3: Cross multiply
    13,599.20x = 20,396.34 × 8,654.14
  4. Step 4: Simplify right side
    13,599.20x = 176,512,781.85
  5. Step 5: Solve for x
    x = 176,512,781.85/13,599.20
  6. Step 6: Final answer
    x = 12,979.64

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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.