Home / 7,686.05-11,531.34-2,755.58

Finding the Fourth Proportional to 7,686.05, 11,531.34 and 2,755.58

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Solution

The fourth proportional to 7,686.05, 11,531.34 and 2,755.58 is: 4,134.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.05 : 11,531.34 = 2,755.58 : x
  2. Step 2: Convert to fraction form
    7,686.05/11,531.34 = 2,755.58/x
  3. Step 3: Cross multiply
    7,686.05x = 11,531.34 × 2,755.58
  4. Step 4: Simplify right side
    7,686.05x = 31,775,472.22
  5. Step 5: Solve for x
    x = 31,775,472.22/7,686.05
  6. Step 6: Final answer
    x = 4,134.18

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1.5x scale

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.