Home / 7,918.55-11,877.56-3,761.54

Finding the Fourth Proportional to 7,918.55, 11,877.56 and 3,761.54

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Solution

The fourth proportional to 7,918.55, 11,877.56 and 3,761.54 is: 5,642.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.55 : 11,877.56 = 3,761.54 : x
  2. Step 2: Convert to fraction form
    7,918.55/11,877.56 = 3,761.54/x
  3. Step 3: Cross multiply
    7,918.55x = 11,877.56 × 3,761.54
  4. Step 4: Simplify right side
    7,918.55x = 44,677,867.06
  5. Step 5: Solve for x
    x = 44,677,867.06/7,918.55
  6. Step 6: Final answer
    x = 5,642.18

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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.