Home / 7,670.18-11,513.81-3,971.42

Finding the Fourth Proportional to 7,670.18, 11,513.81 and 3,971.42

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Solution

The fourth proportional to 7,670.18, 11,513.81 and 3,971.42 is: 5,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,670.18 : 11,513.81 = 3,971.42 : x
  2. Step 2: Convert to fraction form
    7,670.18/11,513.81 = 3,971.42/x
  3. Step 3: Cross multiply
    7,670.18x = 11,513.81 × 3,971.42
  4. Step 4: Simplify right side
    7,670.18x = 45,726,112.78
  5. Step 5: Solve for x
    x = 45,726,112.78/7,670.18
  6. Step 6: Final answer
    x = 5,961.54

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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.