Home / 8,159.25-12,238.85-2,315.86

Finding the Fourth Proportional to 8,159.25, 12,238.85 and 2,315.86

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Solution

The fourth proportional to 8,159.25, 12,238.85 and 2,315.86 is: 3,473.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.25 : 12,238.85 = 2,315.86 : x
  2. Step 2: Convert to fraction form
    8,159.25/12,238.85 = 2,315.86/x
  3. Step 3: Cross multiply
    8,159.25x = 12,238.85 × 2,315.86
  4. Step 4: Simplify right side
    8,159.25x = 28,343,451.58
  5. Step 5: Solve for x
    x = 28,343,451.58/8,159.25
  6. Step 6: Final answer
    x = 3,473.78

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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.