Home / 7,686.74-11,531.64-2,755.08

Finding the Fourth Proportional to 7,686.74, 11,531.64 and 2,755.08

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Solution

The fourth proportional to 7,686.74, 11,531.64 and 2,755.08 is: 4,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.74 : 11,531.64 = 2,755.08 : x
  2. Step 2: Convert to fraction form
    7,686.74/11,531.64 = 2,755.08/x
  3. Step 3: Cross multiply
    7,686.74x = 11,531.64 × 2,755.08
  4. Step 4: Simplify right side
    7,686.74x = 31,770,590.73
  5. Step 5: Solve for x
    x = 31,770,590.73/7,686.74
  6. Step 6: Final answer
    x = 4,133.17

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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.