Home / 10,512.88-15,764.56-3,114.75

Finding the Fourth Proportional to 10,512.88, 15,764.56 and 3,114.75

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Solution

The fourth proportional to 10,512.88, 15,764.56 and 3,114.75 is: 4,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.88 : 15,764.56 = 3,114.75 : x
  2. Step 2: Convert to fraction form
    10,512.88/15,764.56 = 3,114.75/x
  3. Step 3: Cross multiply
    10,512.88x = 15,764.56 × 3,114.75
  4. Step 4: Simplify right side
    10,512.88x = 49,102,663.26
  5. Step 5: Solve for x
    x = 49,102,663.26/10,512.88
  6. Step 6: Final answer
    x = 4,670.71

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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.