Home / 10,512.38-15,771.54-3,116.82

Finding the Fourth Proportional to 10,512.38, 15,771.54 and 3,116.82

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Solution

The fourth proportional to 10,512.38, 15,771.54 and 3,116.82 is: 4,676.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.38 : 15,771.54 = 3,116.82 : x
  2. Step 2: Convert to fraction form
    10,512.38/15,771.54 = 3,116.82/x
  3. Step 3: Cross multiply
    10,512.38x = 15,771.54 × 3,116.82
  4. Step 4: Simplify right side
    10,512.38x = 49,157,051.30
  5. Step 5: Solve for x
    x = 49,157,051.30/10,512.38
  6. Step 6: Final answer
    x = 4,676.11

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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.