Home / 18,113.32-27,169.35-12,228.88

Finding the Fourth Proportional to 18,113.32, 27,169.35 and 12,228.88

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Solution

The fourth proportional to 18,113.32, 27,169.35 and 12,228.88 is: 18,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.32 : 27,169.35 = 12,228.88 : x
  2. Step 2: Convert to fraction form
    18,113.32/27,169.35 = 12,228.88/x
  3. Step 3: Cross multiply
    18,113.32x = 27,169.35 × 12,228.88
  4. Step 4: Simplify right side
    18,113.32x = 332,250,720.83
  5. Step 5: Solve for x
    x = 332,250,720.83/18,113.32
  6. Step 6: Final answer
    x = 18,342.89

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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.