Home / 7,781.24-11,667.14-3,101.96

Finding the Fourth Proportional to 7,781.24, 11,667.14 and 3,101.96

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Solution

The fourth proportional to 7,781.24, 11,667.14 and 3,101.96 is: 4,651.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,781.24 : 11,667.14 = 3,101.96 : x
  2. Step 2: Convert to fraction form
    7,781.24/11,667.14 = 3,101.96/x
  3. Step 3: Cross multiply
    7,781.24x = 11,667.14 × 3,101.96
  4. Step 4: Simplify right side
    7,781.24x = 36,191,001.59
  5. Step 5: Solve for x
    x = 36,191,001.59/7,781.24
  6. Step 6: Final answer
    x = 4,651.06

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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.