Home / 8,125.55-12,188.75-2,579.33

Finding the Fourth Proportional to 8,125.55, 12,188.75 and 2,579.33

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Solution

The fourth proportional to 8,125.55, 12,188.75 and 2,579.33 is: 3,869.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.55 : 12,188.75 = 2,579.33 : x
  2. Step 2: Convert to fraction form
    8,125.55/12,188.75 = 2,579.33/x
  3. Step 3: Cross multiply
    8,125.55x = 12,188.75 × 2,579.33
  4. Step 4: Simplify right side
    8,125.55x = 31,438,757.55
  5. Step 5: Solve for x
    x = 31,438,757.55/8,125.55
  6. Step 6: Final answer
    x = 3,869.12

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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.