Home / 7,961.51-11,938.16-3,575.21

Finding the Fourth Proportional to 7,961.51, 11,938.16 and 3,575.21

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Solution

The fourth proportional to 7,961.51, 11,938.16 and 3,575.21 is: 5,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.51 : 11,938.16 = 3,575.21 : x
  2. Step 2: Convert to fraction form
    7,961.51/11,938.16 = 3,575.21/x
  3. Step 3: Cross multiply
    7,961.51x = 11,938.16 × 3,575.21
  4. Step 4: Simplify right side
    7,961.51x = 42,681,351.45
  5. Step 5: Solve for x
    x = 42,681,351.45/7,961.51
  6. Step 6: Final answer
    x = 5,360.97

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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.