Home / 11,854.56-17,781.84-3,090.12

Finding the Fourth Proportional to 11,854.56, 17,781.84 and 3,090.12

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Solution

The fourth proportional to 11,854.56, 17,781.84 and 3,090.12 is: 4,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,854.56 : 17,781.84 = 3,090.12 : x
  2. Step 2: Convert to fraction form
    11,854.56/17,781.84 = 3,090.12/x
  3. Step 3: Cross multiply
    11,854.56x = 17,781.84 × 3,090.12
  4. Step 4: Simplify right side
    11,854.56x = 54,948,019.42
  5. Step 5: Solve for x
    x = 54,948,019.42/11,854.56
  6. Step 6: Final answer
    x = 4,635.18

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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.