Home / 9,327.18-12,871.49-5,135.43

Finding the Fourth Proportional to 9,327.18, 12,871.49 and 5,135.43

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Solution

The fourth proportional to 9,327.18, 12,871.49 and 5,135.43 is: 7,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.18 : 12,871.49 = 5,135.43 : x
  2. Step 2: Convert to fraction form
    9,327.18/12,871.49 = 5,135.43/x
  3. Step 3: Cross multiply
    9,327.18x = 12,871.49 × 5,135.43
  4. Step 4: Simplify right side
    9,327.18x = 66,100,610.21
  5. Step 5: Solve for x
    x = 66,100,610.21/9,327.18
  6. Step 6: Final answer
    x = 7,086.88

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