Home / 8,936.42-13,402.80-3,387.86

Finding the Fourth Proportional to 8,936.42, 13,402.80 and 3,387.86

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Solution

The fourth proportional to 8,936.42, 13,402.80 and 3,387.86 is: 5,081.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.42 : 13,402.80 = 3,387.86 : x
  2. Step 2: Convert to fraction form
    8,936.42/13,402.80 = 3,387.86/x
  3. Step 3: Cross multiply
    8,936.42x = 13,402.80 × 3,387.86
  4. Step 4: Simplify right side
    8,936.42x = 45,406,742.99
  5. Step 5: Solve for x
    x = 45,406,742.99/8,936.42
  6. Step 6: Final answer
    x = 5,081.09

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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.