Home / 7,956.42-11,945.43-5,485.11

Finding the Fourth Proportional to 7,956.42, 11,945.43 and 5,485.11

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Solution

The fourth proportional to 7,956.42, 11,945.43 and 5,485.11 is: 8,235.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,956.42 : 11,945.43 = 5,485.11 : x
  2. Step 2: Convert to fraction form
    7,956.42/11,945.43 = 5,485.11/x
  3. Step 3: Cross multiply
    7,956.42x = 11,945.43 × 5,485.11
  4. Step 4: Simplify right side
    7,956.42x = 65,521,997.55
  5. Step 5: Solve for x
    x = 65,521,997.55/7,956.42
  6. Step 6: Final answer
    x = 8,235.11

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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.