Home / 8,679.20-11,977.04-4,902.52

Finding the Fourth Proportional to 8,679.20, 11,977.04 and 4,902.52

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Solution

The fourth proportional to 8,679.20, 11,977.04 and 4,902.52 is: 6,765.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.20 : 11,977.04 = 4,902.52 : x
  2. Step 2: Convert to fraction form
    8,679.20/11,977.04 = 4,902.52/x
  3. Step 3: Cross multiply
    8,679.20x = 11,977.04 × 4,902.52
  4. Step 4: Simplify right side
    8,679.20x = 58,717,678.14
  5. Step 5: Solve for x
    x = 58,717,678.14/8,679.20
  6. Step 6: Final answer
    x = 6,765.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.