Home / 8,179.57-12,270.51-2,631.62

Finding the Fourth Proportional to 8,179.57, 12,270.51 and 2,631.62

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Solution

The fourth proportional to 8,179.57, 12,270.51 and 2,631.62 is: 3,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.57 : 12,270.51 = 2,631.62 : x
  2. Step 2: Convert to fraction form
    8,179.57/12,270.51 = 2,631.62/x
  3. Step 3: Cross multiply
    8,179.57x = 12,270.51 × 2,631.62
  4. Step 4: Simplify right side
    8,179.57x = 32,291,299.82
  5. Step 5: Solve for x
    x = 32,291,299.82/8,179.57
  6. Step 6: Final answer
    x = 3,947.80

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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.