Home / 12,530.62-18,791.61-5,132.98

Finding the Fourth Proportional to 12,530.62, 18,791.61 and 5,132.98

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Solution

The fourth proportional to 12,530.62, 18,791.61 and 5,132.98 is: 7,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.62 : 18,791.61 = 5,132.98 : x
  2. Step 2: Convert to fraction form
    12,530.62/18,791.61 = 5,132.98/x
  3. Step 3: Cross multiply
    12,530.62x = 18,791.61 × 5,132.98
  4. Step 4: Simplify right side
    12,530.62x = 96,456,958.30
  5. Step 5: Solve for x
    x = 96,456,958.30/12,530.62
  6. Step 6: Final answer
    x = 7,697.70

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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.