Home / 12,452.42-17,190.61-8,209.64

Finding the Fourth Proportional to 12,452.42, 17,190.61 and 8,209.64

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Solution

The fourth proportional to 12,452.42, 17,190.61 and 8,209.64 is: 11,333.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.42 : 17,190.61 = 8,209.64 : x
  2. Step 2: Convert to fraction form
    12,452.42/17,190.61 = 8,209.64/x
  3. Step 3: Cross multiply
    12,452.42x = 17,190.61 × 8,209.64
  4. Step 4: Simplify right side
    12,452.42x = 141,128,592.48
  5. Step 5: Solve for x
    x = 141,128,592.48/12,452.42
  6. Step 6: Final answer
    x = 11,333.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.