Home / 11,178.38-16,742.05-5,339.09

Finding the Fourth Proportional to 11,178.38, 16,742.05 and 5,339.09

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Solution

The fourth proportional to 11,178.38, 16,742.05 and 5,339.09 is: 7,996.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.38 : 16,742.05 = 5,339.09 : x
  2. Step 2: Convert to fraction form
    11,178.38/16,742.05 = 5,339.09/x
  3. Step 3: Cross multiply
    11,178.38x = 16,742.05 × 5,339.09
  4. Step 4: Simplify right side
    11,178.38x = 89,387,214.68
  5. Step 5: Solve for x
    x = 89,387,214.68/11,178.38
  6. Step 6: Final answer
    x = 7,996.44

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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.