Home / 9,613.26-14,420.73-2,687.78

Finding the Fourth Proportional to 9,613.26, 14,420.73 and 2,687.78

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Solution

The fourth proportional to 9,613.26, 14,420.73 and 2,687.78 is: 4,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,613.26 : 14,420.73 = 2,687.78 : x
  2. Step 2: Convert to fraction form
    9,613.26/14,420.73 = 2,687.78/x
  3. Step 3: Cross multiply
    9,613.26x = 14,420.73 × 2,687.78
  4. Step 4: Simplify right side
    9,613.26x = 38,759,749.68
  5. Step 5: Solve for x
    x = 38,759,749.68/9,613.26
  6. Step 6: Final answer
    x = 4,031.90

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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.