Home / 8,387.04-12,577.68-2,839.12

Finding the Fourth Proportional to 8,387.04, 12,577.68 and 2,839.12

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Solution

The fourth proportional to 8,387.04, 12,577.68 and 2,839.12 is: 4,257.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.04 : 12,577.68 = 2,839.12 : x
  2. Step 2: Convert to fraction form
    8,387.04/12,577.68 = 2,839.12/x
  3. Step 3: Cross multiply
    8,387.04x = 12,577.68 × 2,839.12
  4. Step 4: Simplify right side
    8,387.04x = 35,709,542.84
  5. Step 5: Solve for x
    x = 35,709,542.84/8,387.04
  6. Step 6: Final answer
    x = 4,257.71

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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.