Home / 8,518.38-12,771.09-2,671.62

Finding the Fourth Proportional to 8,518.38, 12,771.09 and 2,671.62

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Solution

The fourth proportional to 8,518.38, 12,771.09 and 2,671.62 is: 4,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.38 : 12,771.09 = 2,671.62 : x
  2. Step 2: Convert to fraction form
    8,518.38/12,771.09 = 2,671.62/x
  3. Step 3: Cross multiply
    8,518.38x = 12,771.09 × 2,671.62
  4. Step 4: Simplify right side
    8,518.38x = 34,119,499.47
  5. Step 5: Solve for x
    x = 34,119,499.47/8,518.38
  6. Step 6: Final answer
    x = 4,005.40

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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.