Home / 8,149.24-12,207.69-4,640.11

Finding the Fourth Proportional to 8,149.24, 12,207.69 and 4,640.11

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Solution

The fourth proportional to 8,149.24, 12,207.69 and 4,640.11 is: 6,950.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.24 : 12,207.69 = 4,640.11 : x
  2. Step 2: Convert to fraction form
    8,149.24/12,207.69 = 4,640.11/x
  3. Step 3: Cross multiply
    8,149.24x = 12,207.69 × 4,640.11
  4. Step 4: Simplify right side
    8,149.24x = 56,645,024.45
  5. Step 5: Solve for x
    x = 56,645,024.45/8,149.24
  6. Step 6: Final answer
    x = 6,950.96

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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.