Home / 11,125.79-16,690.31-3,335.21

Finding the Fourth Proportional to 11,125.79, 16,690.31 and 3,335.21

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Solution

The fourth proportional to 11,125.79, 16,690.31 and 3,335.21 is: 5,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.79 : 16,690.31 = 3,335.21 : x
  2. Step 2: Convert to fraction form
    11,125.79/16,690.31 = 3,335.21/x
  3. Step 3: Cross multiply
    11,125.79x = 16,690.31 × 3,335.21
  4. Step 4: Simplify right side
    11,125.79x = 55,665,672.14
  5. Step 5: Solve for x
    x = 55,665,672.14/11,125.79
  6. Step 6: Final answer
    x = 5,003.30

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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.