Home / 10,089.72-15,134.66-3,515.90

Finding the Fourth Proportional to 10,089.72, 15,134.66 and 3,515.90

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Solution

The fourth proportional to 10,089.72, 15,134.66 and 3,515.90 is: 5,273.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.72 : 15,134.66 = 3,515.90 : x
  2. Step 2: Convert to fraction form
    10,089.72/15,134.66 = 3,515.90/x
  3. Step 3: Cross multiply
    10,089.72x = 15,134.66 × 3,515.90
  4. Step 4: Simplify right side
    10,089.72x = 53,211,951.09
  5. Step 5: Solve for x
    x = 53,211,951.09/10,089.72
  6. Step 6: Final answer
    x = 5,273.88

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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.