Home / 8,125.82-12,188.93-2,503.61

Finding the Fourth Proportional to 8,125.82, 12,188.93 and 2,503.61

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Solution

The fourth proportional to 8,125.82, 12,188.93 and 2,503.61 is: 3,755.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.82 : 12,188.93 = 2,503.61 : x
  2. Step 2: Convert to fraction form
    8,125.82/12,188.93 = 2,503.61/x
  3. Step 3: Cross multiply
    8,125.82x = 12,188.93 × 2,503.61
  4. Step 4: Simplify right side
    8,125.82x = 30,516,313.37
  5. Step 5: Solve for x
    x = 30,516,313.37/8,125.82
  6. Step 6: Final answer
    x = 3,755.48

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1.5x scale

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.