Home / 11,147.57-15,383.57-6,112

Finding the Fourth Proportional to 11,147.57, 15,383.57 and 6,112

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Solution

The fourth proportional to 11,147.57, 15,383.57 and 6,112 is: 8,434.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.57 : 15,383.57 = 6,112 : x
  2. Step 2: Convert to fraction form
    11,147.57/15,383.57 = 6,112/x
  3. Step 3: Cross multiply
    11,147.57x = 15,383.57 × 6,112
  4. Step 4: Simplify right side
    11,147.57x = 94,024,379.84
  5. Step 5: Solve for x
    x = 94,024,379.84/11,147.57
  6. Step 6: Final answer
    x = 8,434.52

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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.