Home / 18,147.42-27,169.20-12,293.64

Finding the Fourth Proportional to 18,147.42, 27,169.20 and 12,293.64

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Solution

The fourth proportional to 18,147.42, 27,169.20 and 12,293.64 is: 18,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.42 : 27,169.20 = 12,293.64 : x
  2. Step 2: Convert to fraction form
    18,147.42/27,169.20 = 12,293.64/x
  3. Step 3: Cross multiply
    18,147.42x = 27,169.20 × 12,293.64
  4. Step 4: Simplify right side
    18,147.42x = 334,008,363.89
  5. Step 5: Solve for x
    x = 334,008,363.89/18,147.42
  6. Step 6: Final answer
    x = 18,405.28

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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.