Home / 8,169.24-12,246.56-3,780.66

Finding the Fourth Proportional to 8,169.24, 12,246.56 and 3,780.66

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Solution

The fourth proportional to 8,169.24, 12,246.56 and 3,780.66 is: 5,667.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.24 : 12,246.56 = 3,780.66 : x
  2. Step 2: Convert to fraction form
    8,169.24/12,246.56 = 3,780.66/x
  3. Step 3: Cross multiply
    8,169.24x = 12,246.56 × 3,780.66
  4. Step 4: Simplify right side
    8,169.24x = 46,300,079.53
  5. Step 5: Solve for x
    x = 46,300,079.53/8,169.24
  6. Step 6: Final answer
    x = 5,667.61

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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.