Home / 11,118.30-16,679.48-5,274.86

Finding the Fourth Proportional to 11,118.30, 16,679.48 and 5,274.86

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Solution

The fourth proportional to 11,118.30, 16,679.48 and 5,274.86 is: 7,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.30 : 16,679.48 = 5,274.86 : x
  2. Step 2: Convert to fraction form
    11,118.30/16,679.48 = 5,274.86/x
  3. Step 3: Cross multiply
    11,118.30x = 16,679.48 × 5,274.86
  4. Step 4: Simplify right side
    11,118.30x = 87,981,921.87
  5. Step 5: Solve for x
    x = 87,981,921.87/11,118.30
  6. Step 6: Final answer
    x = 7,913.25

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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.