Home / 10,449.53-15,672.48-4,122.72

Finding the Fourth Proportional to 10,449.53, 15,672.48 and 4,122.72

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Solution

The fourth proportional to 10,449.53, 15,672.48 and 4,122.72 is: 6,183.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,449.53 : 15,672.48 = 4,122.72 : x
  2. Step 2: Convert to fraction form
    10,449.53/15,672.48 = 4,122.72/x
  3. Step 3: Cross multiply
    10,449.53x = 15,672.48 × 4,122.72
  4. Step 4: Simplify right side
    10,449.53x = 64,613,290.06
  5. Step 5: Solve for x
    x = 64,613,290.06/10,449.53
  6. Step 6: Final answer
    x = 6,183.37

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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.