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Finding the Fourth Proportional to 11,317.88, 15,613.81 and 6,839.03

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Solution

The fourth proportional to 11,317.88, 15,613.81 and 6,839.03 is: 9,434.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.88 : 15,613.81 = 6,839.03 : x
  2. Step 2: Convert to fraction form
    11,317.88/15,613.81 = 6,839.03/x
  3. Step 3: Cross multiply
    11,317.88x = 15,613.81 × 6,839.03
  4. Step 4: Simplify right side
    11,317.88x = 106,783,375.41
  5. Step 5: Solve for x
    x = 106,783,375.41/11,317.88
  6. Step 6: Final answer
    x = 9,434.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.