Home / 8,147.94-12,221.91-2,303.79

Finding the Fourth Proportional to 8,147.94, 12,221.91 and 2,303.79

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Solution

The fourth proportional to 8,147.94, 12,221.91 and 2,303.79 is: 3,455.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.94 : 12,221.91 = 2,303.79 : x
  2. Step 2: Convert to fraction form
    8,147.94/12,221.91 = 2,303.79/x
  3. Step 3: Cross multiply
    8,147.94x = 12,221.91 × 2,303.79
  4. Step 4: Simplify right side
    8,147.94x = 28,156,714.04
  5. Step 5: Solve for x
    x = 28,156,714.04/8,147.94
  6. Step 6: Final answer
    x = 3,455.69

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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.