Home / 8,383.14-12,572.76-3,120.63

Finding the Fourth Proportional to 8,383.14, 12,572.76 and 3,120.63

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Solution

The fourth proportional to 8,383.14, 12,572.76 and 3,120.63 is: 4,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,383.14 : 12,572.76 = 3,120.63 : x
  2. Step 2: Convert to fraction form
    8,383.14/12,572.76 = 3,120.63/x
  3. Step 3: Cross multiply
    8,383.14x = 12,572.76 × 3,120.63
  4. Step 4: Simplify right side
    8,383.14x = 39,234,936.72
  5. Step 5: Solve for x
    x = 39,234,936.72/8,383.14
  6. Step 6: Final answer
    x = 4,680.22

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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.