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Finding the Fourth Proportional to 7,327, 10,111.26 and 4,015

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Solution

The fourth proportional to 7,327, 10,111.26 and 4,015 is: 5,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,327 : 10,111.26 = 4,015 : x
  2. Step 2: Convert to fraction form
    7,327/10,111.26 = 4,015/x
  3. Step 3: Cross multiply
    7,327x = 10,111.26 × 4,015
  4. Step 4: Simplify right side
    7,327x = 40,596,708.90
  5. Step 5: Solve for x
    x = 40,596,708.90/7,327
  6. Step 6: Final answer
    x = 5,540.70

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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.