Home / 9,117.75-13,676.81-2,961.75

Finding the Fourth Proportional to 9,117.75, 13,676.81 and 2,961.75

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Solution

The fourth proportional to 9,117.75, 13,676.81 and 2,961.75 is: 4,442.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.75 : 13,676.81 = 2,961.75 : x
  2. Step 2: Convert to fraction form
    9,117.75/13,676.81 = 2,961.75/x
  3. Step 3: Cross multiply
    9,117.75x = 13,676.81 × 2,961.75
  4. Step 4: Simplify right side
    9,117.75x = 40,507,277.21
  5. Step 5: Solve for x
    x = 40,507,277.21/9,117.75
  6. Step 6: Final answer
    x = 4,442.68

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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.