Home / 11,723.40-17,593.20-8,439.30

Finding the Fourth Proportional to 11,723.40, 17,593.20 and 8,439.30

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Solution

The fourth proportional to 11,723.40, 17,593.20 and 8,439.30 is: 12,664.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.40 : 17,593.20 = 8,439.30 : x
  2. Step 2: Convert to fraction form
    11,723.40/17,593.20 = 8,439.30/x
  3. Step 3: Cross multiply
    11,723.40x = 17,593.20 × 8,439.30
  4. Step 4: Simplify right side
    11,723.40x = 148,474,292.76
  5. Step 5: Solve for x
    x = 148,474,292.76/11,723.40
  6. Step 6: Final answer
    x = 12,664.78

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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.