Home / 10,469.52-15,704.64-5,272.56

Finding the Fourth Proportional to 10,469.52, 15,704.64 and 5,272.56

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Solution

The fourth proportional to 10,469.52, 15,704.64 and 5,272.56 is: 7,909.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,469.52 : 15,704.64 = 5,272.56 : x
  2. Step 2: Convert to fraction form
    10,469.52/15,704.64 = 5,272.56/x
  3. Step 3: Cross multiply
    10,469.52x = 15,704.64 × 5,272.56
  4. Step 4: Simplify right side
    10,469.52x = 82,803,656.68
  5. Step 5: Solve for x
    x = 82,803,656.68/10,469.52
  6. Step 6: Final answer
    x = 7,909.02

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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.