Home / 11,187.18-16,781.34-2,867.28

Finding the Fourth Proportional to 11,187.18, 16,781.34 and 2,867.28

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Solution

The fourth proportional to 11,187.18, 16,781.34 and 2,867.28 is: 4,301.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.18 : 16,781.34 = 2,867.28 : x
  2. Step 2: Convert to fraction form
    11,187.18/16,781.34 = 2,867.28/x
  3. Step 3: Cross multiply
    11,187.18x = 16,781.34 × 2,867.28
  4. Step 4: Simplify right side
    11,187.18x = 48,116,800.56
  5. Step 5: Solve for x
    x = 48,116,800.56/11,187.18
  6. Step 6: Final answer
    x = 4,301.07

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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.