Home / 11,221.31-16,801.85-6,276.86

Finding the Fourth Proportional to 11,221.31, 16,801.85 and 6,276.86

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Solution

The fourth proportional to 11,221.31, 16,801.85 and 6,276.86 is: 9,398.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.31 : 16,801.85 = 6,276.86 : x
  2. Step 2: Convert to fraction form
    11,221.31/16,801.85 = 6,276.86/x
  3. Step 3: Cross multiply
    11,221.31x = 16,801.85 × 6,276.86
  4. Step 4: Simplify right side
    11,221.31x = 105,462,917.89
  5. Step 5: Solve for x
    x = 105,462,917.89/11,221.31
  6. Step 6: Final answer
    x = 9,398.45

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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.