Home / 7,971.30-11,961.57-4,022.87

Finding the Fourth Proportional to 7,971.30, 11,961.57 and 4,022.87

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Solution

The fourth proportional to 7,971.30, 11,961.57 and 4,022.87 is: 6,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.30 : 11,961.57 = 4,022.87 : x
  2. Step 2: Convert to fraction form
    7,971.30/11,961.57 = 4,022.87/x
  3. Step 3: Cross multiply
    7,971.30x = 11,961.57 × 4,022.87
  4. Step 4: Simplify right side
    7,971.30x = 48,119,775.17
  5. Step 5: Solve for x
    x = 48,119,775.17/7,971.30
  6. Step 6: Final answer
    x = 6,036.63

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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.