Home / 10,087.20-15,122.16-3,512.52

Finding the Fourth Proportional to 10,087.20, 15,122.16 and 3,512.52

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Solution

The fourth proportional to 10,087.20, 15,122.16 and 3,512.52 is: 5,265.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.20 : 15,122.16 = 3,512.52 : x
  2. Step 2: Convert to fraction form
    10,087.20/15,122.16 = 3,512.52/x
  3. Step 3: Cross multiply
    10,087.20x = 15,122.16 × 3,512.52
  4. Step 4: Simplify right side
    10,087.20x = 53,116,889.44
  5. Step 5: Solve for x
    x = 53,116,889.44/10,087.20
  6. Step 6: Final answer
    x = 5,265.77

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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.