Home / 7,913.52-11,871.72-2,648.04

Finding the Fourth Proportional to 7,913.52, 11,871.72 and 2,648.04

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Solution

The fourth proportional to 7,913.52, 11,871.72 and 2,648.04 is: 3,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.52 : 11,871.72 = 2,648.04 : x
  2. Step 2: Convert to fraction form
    7,913.52/11,871.72 = 2,648.04/x
  3. Step 3: Cross multiply
    7,913.52x = 11,871.72 × 2,648.04
  4. Step 4: Simplify right side
    7,913.52x = 31,436,789.43
  5. Step 5: Solve for x
    x = 31,436,789.43/7,913.52
  6. Step 6: Final answer
    x = 3,972.54

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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.