Home / 13,499.72-20,255.73-6,930.52

Finding the Fourth Proportional to 13,499.72, 20,255.73 and 6,930.52

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Solution

The fourth proportional to 13,499.72, 20,255.73 and 6,930.52 is: 10,398.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,499.72 : 20,255.73 = 6,930.52 : x
  2. Step 2: Convert to fraction form
    13,499.72/20,255.73 = 6,930.52/x
  3. Step 3: Cross multiply
    13,499.72x = 20,255.73 × 6,930.52
  4. Step 4: Simplify right side
    13,499.72x = 140,382,741.88
  5. Step 5: Solve for x
    x = 140,382,741.88/13,499.72
  6. Step 6: Final answer
    x = 10,398.94

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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.