Home / 11,128.12-15,357.05-6,092.56

Finding the Fourth Proportional to 11,128.12, 15,357.05 and 6,092.56

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Solution

The fourth proportional to 11,128.12, 15,357.05 and 6,092.56 is: 8,407.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.12 : 15,357.05 = 6,092.56 : x
  2. Step 2: Convert to fraction form
    11,128.12/15,357.05 = 6,092.56/x
  3. Step 3: Cross multiply
    11,128.12x = 15,357.05 × 6,092.56
  4. Step 4: Simplify right side
    11,128.12x = 93,563,641.30
  5. Step 5: Solve for x
    x = 93,563,641.30/11,128.12
  6. Step 6: Final answer
    x = 8,407.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.