Home / 7,620.08-11,427.68-3,921.82

Finding the Fourth Proportional to 7,620.08, 11,427.68 and 3,921.82

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Solution

The fourth proportional to 7,620.08, 11,427.68 and 3,921.82 is: 5,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.08 : 11,427.68 = 3,921.82 : x
  2. Step 2: Convert to fraction form
    7,620.08/11,427.68 = 3,921.82/x
  3. Step 3: Cross multiply
    7,620.08x = 11,427.68 × 3,921.82
  4. Step 4: Simplify right side
    7,620.08x = 44,817,285.21
  5. Step 5: Solve for x
    x = 44,817,285.21/7,620.08
  6. Step 6: Final answer
    x = 5,881.48

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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.